diff --git a/skins/9IPHP/archive-articles.ftl b/skins/9IPHP/archive-articles.ftl
index 1d51813..93387eb 100644
--- a/skins/9IPHP/archive-articles.ftl
+++ b/skins/9IPHP/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/archives.ftl b/skins/9IPHP/archives.ftl
index b7f4d7f..74e1af0 100644
--- a/skins/9IPHP/archives.ftl
+++ b/skins/9IPHP/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/article-list.ftl b/skins/9IPHP/article-list.ftl
index 584a25d..30f712a 100644
--- a/skins/9IPHP/article-list.ftl
+++ b/skins/9IPHP/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div>
     <#list articles as article>
     <article class="post">
diff --git a/skins/9IPHP/article.ftl b/skins/9IPHP/article.ftl
index 8c87b27..299b918 100644
--- a/skins/9IPHP/article.ftl
+++ b/skins/9IPHP/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/9IPHP/category-articles.ftl b/skins/9IPHP/category-articles.ftl
index 95cdc73..0f5af28 100644
--- a/skins/9IPHP/category-articles.ftl
+++ b/skins/9IPHP/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/common-comment.ftl b/skins/9IPHP/common-comment.ftl
index 7d31def..5c98fef 100644
--- a/skins/9IPHP/common-comment.ftl
+++ b/skins/9IPHP/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}">
     <div>
         <div class="avatar tooltipped tooltipped-n" aria-label="${comment.commentName}"
diff --git a/skins/9IPHP/css/base.css b/skins/9IPHP/css/base.css
index c01326d..7cd6622 100644
--- a/skins/9IPHP/css/base.css
+++ b/skins/9IPHP/css/base.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /*
  * skin style
  *
diff --git a/skins/9IPHP/css/base.min.css b/skins/9IPHP/css/base.min.css
index a91182b..24ae16a 100644
--- a/skins/9IPHP/css/base.min.css
+++ b/skins/9IPHP/css/base.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 blockquote,body,dd,dl,h1,h2,h3,h4,h5,h6,ol,p,ul{margin:0}.content-reset,body,button,input,select,textarea{font-family:"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{font-size:14px;color:#333}::-moz-selection{text-shadow:none;background:rgba(65,131,196,.4)}ol,ul{padding:0}article,aside,details,figcaption,figure,footer,header,hgroup,nav,section{display:block}audio,canvas,video{display:inline-block}audio:not([controls]){display:none}a{text-decoration:none;color:#383838}.content-reset 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#eee}button,input[type=button],input[type=reset],input[type=submit]{cursor:pointer;-webkit-appearance:button}input[type=search]{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;-webkit-appearance:textfield}input[type=search]::-webkit-search-cancel-button,input[type=search]::-webkit-search-decoration{-webkit-appearance:none}textarea{overflow:auto;resize:vertical}svg{vertical-align:text-top;fill:currentColor}.content-reset{word-wrap:break-word;overflow:auto;line-height:1.5;font-size:16px;word-break:break-all}.content-reset ol,.content-reset ul{padding-left:2em;margin-top:0;margin-bottom:16px}.content-reset li{margin-top:.25em}.content-reset h1,.content-reset h2,.content-reset h3,.content-reset h4,.content-reset h5,.content-reset h6{margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.25}.content-reset h1{font-size:2em}.content-reset h2{font-size:1.5em}.content-reset h3{font-size:1.25em}.content-reset h4{font-size:1em}.content-reset 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.tag.tooltipped{display:inline-block;text-decoration:none}.icon-up:hover{background-color:#ff4d3a}aside .ad{background-color:#3cbc8d;color:#fff;padding:20px;margin-bottom:20px;border:1px solid transparent}aside .meta main{text-align:right;line-height:20px}aside .meta img{float:left;height:80px;width:80px;border-radius:5px}aside .tag.tooltipped{padding:2px 5px;margin-bottom:10px;border:1px solid #e1e1e1;margin-right:10px;line-height:22px}aside.has-toc>ul>li{list-style:none;float:left;width:50%;margin:0;cursor:pointer;line-height:18px;font-size:16px;text-align:center;font-weight:400}aside.has-toc ul>li.current{color:#ff4d3a}.post .meta,.post sup{color:#aaa}aside .b3-solo-list{font-size:14px}aside.has-toc>section:last-child{margin-top:20px}.post{border:1px solid #ededed;margin-bottom:20px;padding:20px}.post .meta,.post h1{margin-bottom:10px}.post h1 a{font-size:30px;font-weight:500;text-decoration:none}.post sup{font-weight:300}.post .meta a{color:#aaa;text-decoration:none}.post .meta a:hover{color:#ff4d3a}.tags>a.tag{color:#fff;font-size:12px;background-color:#bbb;margin-right:10px;padding:0 5px;line-height:22px;margin-top:10px}.tags>a.tag:before{content:"#"}.tags>a.tag:hover{background:#999}.post footer .copyright{padding:10px;font-size:14px;line-height:16px;border:1px solid #ff4d3a;border-left-width:20px;margin:20px 0}.post .rel a{padding:5px 14px;background-color:#fff;border:1px solid #ddd;border-radius:15px;margin:20px 0}.post .rel a:hover{background-color:#eee}.title h2{font-size:16px;font-weight:700;padding-bottom:10px;border-bottom:1px solid #f1f1f1;margin-top:20px}.title>h2.tip{border-bottom:0}.comments>li{list-style:none;border-bottom:1px solid #f1f1f1;padding:10px}.comments>li>div{display:flex}.comments .avatar{width:50px;height:50px;border-radius:100%;margin-right:20px;background-size:contain}.comments main{flex:1;min-width:1px}.comments .content-reset{margin-top:10px}.comments .user-name{color:#666;text-decoration:none}.comments .user-name:hover{color:#ff4d3a}.comments .reply-btn{float:right;background-color:#ff4d3a;color:#fff;text-decoration:none;font-size:12px;padding:2px 5px}.comments .reply-btn:hover{background-color:#e42f19}#commentForm{margin-top:20px}.form .captcha{height:28px}.other{border:1px solid #ededed;margin-bottom:20px;padding:0 20px 20px}@media (max-width:900px){.navbar .form{display:none}}@media (max-width:700px){.wrapper,aside{box-sizing:border-box;width:100%}.icon-list,.responsive .list{background-color:#fff;position:absolute}.page-icon{margin:13px 3px 0 0}.wrapper{min-width:auto;padding:0 10px}.main-wrap>main{margin-right:0}.main-wrap,.responsive{display:block}.banner{margin-bottom:20px}.banner .fn-right,.banner small,.navbar{display:none}.icon-list{right:10px;top:20px;font-size:20px;padding:8px 6px;cursor:pointer}.responsive .list{width:100%;border:1px solid #eee;left:0;display:none;z-index:10;top:75px}.responsive .list li.current{background-color:#eee}}
\ No newline at end of file
diff --git a/skins/9IPHP/dynamic.ftl b/skins/9IPHP/dynamic.ftl
index 64df656..c9b1486 100644
--- a/skins/9IPHP/dynamic.ftl
+++ b/skins/9IPHP/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/footer.ftl b/skins/9IPHP/footer.ftl
index 9720a07..a2eaaa1 100644
--- a/skins/9IPHP/footer.ftl
+++ b/skins/9IPHP/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <footer class="footer fn-clear">
     &copy; ${year}
     ${footerContent}
diff --git a/skins/9IPHP/header.ftl b/skins/9IPHP/header.ftl
index 25652c9..89679a7 100644
--- a/skins/9IPHP/header.ftl
+++ b/skins/9IPHP/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <header>
     <div class="banner">
         <div class="fn-clear wrapper">
diff --git a/skins/9IPHP/index.ftl b/skins/9IPHP/index.ftl
index 6cefc1f..81b702f 100644
--- a/skins/9IPHP/index.ftl
+++ b/skins/9IPHP/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/js/common.js b/skins/9IPHP/js/common.js
index 59bc2e6..10aa709 100644
--- a/skins/9IPHP/js/common.js
+++ b/skins/9IPHP/js/common.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview util and every page should be used.
diff --git a/skins/9IPHP/js/common.min.js b/skins/9IPHP/js/common.min.js
index 7ad6f17..7df14b2 100644
--- a/skins/9IPHP/js/common.min.js
+++ b/skins/9IPHP/js/common.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var Skin={_initCommon:function(i){$("body").on("click",".content-reset img",function(){window.open(this.src)});var t=$("header .banner"),n=$("header .navbar");$(window).scroll(function(){if($(window).scrollTop()>125?i.show():i.hide(),$(window).width()<701)return!1;$(window).scrollTop()>t.height()?(n.addClass("pin"),$(".main-wrap").parent().css("margin-top","86px")):(n.removeClass("pin"),$(".main-wrap").parent().css("margin-top","0"))})},init:function(){this._initCommon($(".icon-up")),$(".navbar nav a").each(function(){this.href===location.href&&(this.className="current")}),$(".responsive .list a").each(function(){this.href===location.href&&$(this).parent().addClass("current")}),$(".responsive .icon-list").click(function(){$(".responsive .list").slideToggle()})},_initArticleCommon:function(i,t){if($(".b3-solo-list li").length>0&&$(window).width()>1e3){$("aside").addClass("has-toc");var n='<ul class="fn-clear"><li class="current" data-tab="toc">'+i+'</li><li data-tab="site">'+t+"</li></ul><section></section>";$("aside").prepend(n);var o=$("aside section:first").html($(".b3-solo-list")),s=$("aside section:last");o.height($(window).height()-154).css({overflow:"auto",width:$("aside").width()+"px"}),s.hide(),$("aside > ul > li").click(function(){"toc"===$(this).data("tab")?s.animate({opacity:"0",top:"-50px"},300,function(){o.show().css("top","-50px"),o.animate({opacity:"1",top:"0"},300).show()}):o.animate({opacity:"0",top:"-50px"},300,function(){o.hide().css("top","-50px"),s.animate({opacity:"1",top:"0"},300).show()}).hide(),$("aside > ul > li").removeClass("current"),$(this).addClass("current")}),$(window).scroll(function(){$(window).scrollTop()>125?$("aside section:eq(0)").css({position:"fixed",top:"51px",backgroundColor:"#fff"}):$("aside section:eq(0)").css({position:"inherit",borderLeft:0})})}},initArticle:function(i,t){this._initArticleCommon(i,t)}};Skin.init();
\ No newline at end of file
diff --git a/skins/9IPHP/js/isotope.pkgd.js b/skins/9IPHP/js/isotope.pkgd.js
index cd3e084..8be7e98 100644
--- a/skins/9IPHP/js/isotope.pkgd.js
+++ b/skins/9IPHP/js/isotope.pkgd.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 !function(t,e){"function"==typeof define&&define.amd?define("jquery-bridget/jquery-bridget",["jquery"],function(i){return e(t,i)}):"object"==typeof module&&module.exports?module.exports=e(t,require("jquery")):t.jQueryBridget=e(t,t.jQuery)}(window,function(t,e){"use strict";function i(i,s,a){function u(t,e,o){var n,s="$()."+i+'("'+e+'")';return t.each(function(t,u){var h=a.data(u,i);if(!h)return void r(i+" not initialized. 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diff --git a/skins/9IPHP/js/isotope.pkgd.min.js b/skins/9IPHP/js/isotope.pkgd.min.js
index c012e8a..0a6b9d6 100644
--- a/skins/9IPHP/js/isotope.pkgd.min.js
+++ b/skins/9IPHP/js/isotope.pkgd.min.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
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n=0;n<t.length;n++){var s=t[n],r=i.sortData[s],a=o.sortData[s];if(r>a||r<a){var u=void 0!==e[s]?e[s]:e,h=u?1:-1;return(r>a?1:-1)*h}}return 0}}var u=t.jQuery,h=String.prototype.trim?function(t){return t.trim()}:function(t){return t.replace(/^\s+|\s+$/g,"")},d=e.create("isotope",{layoutMode:"masonry",isJQueryFiltering:!0,sortAscending:!0});d.Item=s,d.LayoutMode=r;var l=d.prototype;l._create=function(){this.itemGUID=0,this._sorters={},this._getSorters(),e.prototype._create.call(this),this.modes={},this.filteredItems=this.items,this.sortHistory=["original-order"];for(var t in r.modes)this._initLayoutMode(t)},l.reloadItems=function(){this.itemGUID=0,e.prototype.reloadItems.call(this)},l._itemize=function(){for(var t=e.prototype._itemize.apply(this,arguments),i=0;i<t.length;i++)t[i].id=this.itemGUID++;return this._updateItemsSortData(t),t},l._initLayoutMode=function(t){var e=r.modes[t],i=this.options[t]||{};this.options[t]=e.options?n.extend(e.options,i):i,this.modes[t]=new e(this)},l.layout=function(){return!this._isLayoutInited&&this._getOption("initLayout")?void this.arrange():void this._layout()},l._layout=function(){var t=this._getIsInstant();this._resetLayout(),this._manageStamps(),this.layoutItems(this.filteredItems,t),this._isLayoutInited=!0},l.arrange=function(t){this.option(t),this._getIsInstant();var e=this._filter(this.items);this.filteredItems=e.matches,this._bindArrangeComplete(),this._isInstant?this._noTransition(this._hideReveal,[e]):this._hideReveal(e),this._sort(),this._layout()},l._init=l.arrange,l._hideReveal=function(t){this.reveal(t.needReveal),this.hide(t.needHide)},l._getIsInstant=function(){var t=this._getOption("layoutInstant"),e=void 0!==t?t:!this._isLayoutInited;return this._isInstant=e,e},l._bindArrangeComplete=function(){function t(){e&&i&&o&&n.dispatchEvent("arrangeComplete",null,[n.filteredItems])}var e,i,o,n=this;this.once("layoutComplete",function(){e=!0,t()}),this.once("hideComplete",function(){i=!0,t()}),this.once("revealComplete",function(){o=!0,t()})},l._filter=function(t){var e=this.options.filter;e=e||"*";for(var i=[],o=[],n=[],s=this._getFilterTest(e),r=0;r<t.length;r++){var a=t[r];if(!a.isIgnored){var u=s(a);u&&i.push(a),u&&a.isHidden?o.push(a):u||a.isHidden||n.push(a)}}return{matches:i,needReveal:o,needHide:n}},l._getFilterTest=function(t){return u&&this.options.isJQueryFiltering?function(e){return u(e.element).is(t)}:"function"==typeof t?function(e){return t(e.element)}:function(e){return o(e.element,t)}},l.updateSortData=function(t){var e;t?(t=n.makeArray(t),e=this.getItems(t)):e=this.items,this._getSorters(),this._updateItemsSortData(e)},l._getSorters=function(){
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\ No newline at end of file
diff --git a/skins/9IPHP/lang/lang_en_US.properties b/skins/9IPHP/lang/lang_en_US.properties
index 4329b1d..3012854 100644
--- a/skins/9IPHP/lang/lang_en_US.properties
+++ b/skins/9IPHP/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/9IPHP/lang/lang_zh_CN.properties b/skins/9IPHP/lang/lang_zh_CN.properties
index 91da5b6..f5bcc1a 100644
--- a/skins/9IPHP/lang/lang_zh_CN.properties
+++ b/skins/9IPHP/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/9IPHP/links.ftl b/skins/9IPHP/links.ftl
index 9a57f6d..1d90922 100644
--- a/skins/9IPHP/links.ftl
+++ b/skins/9IPHP/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/macro-comments.ftl b/skins/9IPHP/macro-comments.ftl
index 25a9018..685a57c 100644
--- a/skins/9IPHP/macro-comments.ftl
+++ b/skins/9IPHP/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <header class='title'><h2>${commentLabel}</h2></header>
 <ul class="comments" id="comments">
diff --git a/skins/9IPHP/macro-head.ftl b/skins/9IPHP/macro-head.ftl
index 4bd0808..6194b3a 100644
--- a/skins/9IPHP/macro-head.ftl
+++ b/skins/9IPHP/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/9IPHP/page.ftl b/skins/9IPHP/page.ftl
index 29f9c0f..44e82eb 100644
--- a/skins/9IPHP/page.ftl
+++ b/skins/9IPHP/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/9IPHP/side.ftl b/skins/9IPHP/side.ftl
index 0d0adf4..958b987 100644
--- a/skins/9IPHP/side.ftl
+++ b/skins/9IPHP/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <aside>
     <section>
         <#if noticeBoard??>
diff --git a/skins/9IPHP/skin.properties b/skins/9IPHP/skin.properties
index 005dd3d..f45ff41 100644
--- a/skins/9IPHP/skin.properties
+++ b/skins/9IPHP/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/9IPHP/tag-articles.ftl b/skins/9IPHP/tag-articles.ftl
index 0e5640f..61d72c9 100644
--- a/skins/9IPHP/tag-articles.ftl
+++ b/skins/9IPHP/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/9IPHP/tags.ftl b/skins/9IPHP/tags.ftl
index f84c36c..31aac9b 100644
--- a/skins/9IPHP/tags.ftl
+++ b/skins/9IPHP/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/archive-articles.ftl b/skins/Andrea/archive-articles.ftl
index 2765ae8..37d5fae 100644
--- a/skins/Andrea/archive-articles.ftl
+++ b/skins/Andrea/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/article-list.ftl b/skins/Andrea/article-list.ftl
index b0daa09..c3074e3 100644
--- a/skins/Andrea/article-list.ftl
+++ b/skins/Andrea/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <dl>
     <#list articles as article>
     <dd class="article">
diff --git a/skins/Andrea/article.ftl b/skins/Andrea/article.ftl
index edad678..b7a2d29 100644
--- a/skins/Andrea/article.ftl
+++ b/skins/Andrea/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Andrea/author-articles.ftl b/skins/Andrea/author-articles.ftl
index 333a40f..4828547 100644
--- a/skins/Andrea/author-articles.ftl
+++ b/skins/Andrea/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/category-articles.ftl b/skins/Andrea/category-articles.ftl
index cb54300..e52b9b5 100644
--- a/skins/Andrea/category-articles.ftl
+++ b/skins/Andrea/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/common-comment.ftl b/skins/Andrea/common-comment.ftl
index b335ce1..9427e97 100644
--- a/skins/Andrea/common-comment.ftl
+++ b/skins/Andrea/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}"
      class="comment-body">
     <div class="comment-panel">
diff --git a/skins/Andrea/css/Andrea.css b/skins/Andrea/css/Andrea.css
index 62945b7..8726365 100644
--- a/skins/Andrea/css/Andrea.css
+++ b/skins/Andrea/css/Andrea.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /*
  * skin andrea style
  *
diff --git a/skins/Andrea/css/Andrea.min.css b/skins/Andrea/css/Andrea.min.css
index c9d32fc..944780e 100644
--- a/skins/Andrea/css/Andrea.min.css
+++ b/skins/Andrea/css/Andrea.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 body,img{font-size:12px}.article-relative ul,.header .right ul,.side-tool ul{list-style-type:none}.comment-info,.side-tool ul ul li a{word-wrap:break-word;overflow:hidden}body{background-image:url(../images/bg-grey.jpg);background-color:#000;color:#363636;font-family:'\5fae\8f6f\96c5\9ed1, Arial,Verdana,sans-serif';margin:0;padding:0}a,a:link,a:visited{color:#BE0700;text-decoration:underline}a:hover{text-decoration:none;color:rgba(190,7,0,.75)}img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic;overflow:hidden}.error-msg{color:#BE0700}#blueBG,#brownBG,#goTop,#greyBG,.article .day,.article .month,.brush-icon,.comment-form button,.pagination a,.side-tool ul ul li a{background-image:url(../images/icon.png)}.wrapper{width:910px;margin:0 auto;position:relative}.main{float:left;width:627px}.side-navi{float:left;width:282px}.header{background:url(../images/bgs.png) no-repeat;width:910px;height:185px;float:left}.header .left{width:566px}.header h1{margin:18px 0 0 37px}.header .left a,.sub-title{color:#FFF;font-family:'\5fae\8f6f\96c5\9ed1',Arial,Verdana,sans-serif;font-size:46px;text-decoration:none}.sub-title{color:#000;font-size:22px;margin-left:40px;margin-top:0;display:block}.header>.left>div{float:right;color:#C0BEBD}.header .right{width:343px}.header .right li{float:left;margin:18px 30px 0 0;width:84px}.header .right li a{color:#FFF;font-family:sans-serif;font-size:26px;text-decoration:none;font-weight:700}.header .right li a:hover{color:#DDD;font-family:sans-serif}.main-content{padding:0 45px;background-color:#D4D4D4}.main-content>h2{color:#BE0700;font-size:20px;line-height:145%;margin-bottom:18px;font-family:'\5fae\8f6f\96c5\9ed1'}.main-footer{background:url(../images/bgs.png) 0 -185px;height:14px;width:627px}.brush{left:-52px;position:absolute;top:283px;width:100px}#brush{background:url(../images/paint.png) 98px -150px no-repeat fixed;position:relative;top:-27px;width:82px}.brush-icon{background-position:0 -312px;height:240px;position:relative;width:92px;z-index:1}.brush-icon:hover{background-position:0 -69px}.article a.underline:hover{text-decoration:underline;color:#BE0700}.article .date{width:40px;float:left}.article .month{color:#FFF;height:20px;text-align:center;width:36px}.article .day{border:1px solid #C4BFBA;border-top:0;background-position:0 -20px;font-size:15px;height:23px;padding-top:4px;text-align:center;width:34px}.article h2{margin-bottom:3px;width:495px}.article h2 a{color:#363636;font-size:24px;line-height:24px;text-decoration:none}.article h2 a:hover{color:#BE0700;text-decoration:underline}.article h2 sup{color:#BE0700;font-size:10px;vertical-align:top}.article-abstract{border-top:2px dashed #F1EEE9;margin-top:15px;padding:20px 0 25px;overflow:hidden;line-height:145%}.article-abstract p:first-child:first-letter,.article-abstract:first-letter{font-size:38px;float:left;font-weight:700;margin:0 3px 3px 0;line-height:38px}.pagination{line-height:21px}.pagination a{background-position:0 -47px;border:1px solid #C5C3C2;color:#8C8C8C;padding:1px 6px;text-decoration:none;margin:2px;font-size:10px}.pagination a.selected{background:#FFF;border:1px solid #C5C3C2;color:#3E3E3E;font-weight:700;padding:1px 7px 2px 6px}.pagination a:hover{background:#F3DEDD;color:#BE0700;border:1px solid #BE0700}.side-navi ul{list-style:none}.side-navi .item{border-radius:0 5px 5px 0;background:url(../images/bg-transparent.png);border:1px solid #999;float:left;margin-top:23px;padding:25px 15px 15px;width:250px;color:#EAE7E0}.side-navi .item dd{margin-bottom:25px}.side-navi .item dd li{list-style-type:none;border-bottom:1px solid #93908A;padding:4px 0 1px 6px;margin-left:0;overflow:hidden;text-overflow:ellipsis;-o-text-overflow:ellipsis;color:#EAE7E0;position:relative;line-height:21px}.side-navi .item dd li:hover{background:url(../images/bg-transparent.png);border-bottom:1px solid #BAB8B5}.side-navi .item dd li:hover a{color:#FFF}.side-navi .item dd li a{white-space:nowrap;color:#EAE7E0;text-decoration:none}.side-navi .item .navi-tags img{cursor:pointer;height:16px;left:3px;position:absolute;top:5px;width:16px}.side-navi .item dd .navi-tags a{padding-left:18px}#naviComments li a{white-space:normal}#naviComments li br{display:none}#naviComments li p{display:inline}#naviComments li a.author{color:#BE0700}#naviComments li:hover{background-image:none}#naviComments li a:hover{text-decoration:underline}#naviComments img{height:16px;width:16px}.side-navi .item h4{border-bottom:1px solid #93908A;color:#EAE7E0;padding:0 5px 8px;font-size:16px}.footer{background-image:url(../images/footer.png);color:#EAE7E0;height:411px;padding:21px 0 0 95px;width:605px;margin-top:40px;text-align:center}.footer a{text-decoration:none}.footer a:hover{text-decoration:underline}.side-tool{position:fixed;top:30px;left:0}.side-tool li{margin-left:0}.side-tool .page-icon{height:14px;width:14px}#blueBG,#brownBG,#greyBG{background-position:-103px 0;display:block;height:21px;margin:3px 0;width:21px;cursor:pointer}#brownBG{background-position:-103px -26px}#blueBG{background-position:-103px -52px}#greyBG.selected,#greyBG:hover{background-position:-126px 0}#brownBG.selected,#brownBG:hover{background-position:-126px -26px}#blueBG.selected,#blueBG:hover{background-position:-126px -52px}#goTop{background-position:-105px -119px;cursor:pointer;height:36px;margin-top:9px;display:block;width:22px}#goTop:hover{background-position:-105px -74px}.side-tool ul ul li a{background-position:right -159px;color:#EAE7E0;display:block;font-size:14px;font-weight:700;height:86px;margin:9px 0;padding:1px 8px 1px 9px;text-align:center;text-decoration:none;width:14px;text-transform:uppercase}.article-body{border-top:2px dashed #F1EEE9;margin-top:15px;overflow:hidden;padding:20px 0 25px;line-height:145%}.article-body p:first-child:first-letter,.article-body:first-letter{font-size:48px;float:left;font-weight:700;margin:0 3px 3px 0}.article-relative{margin:15px 0}.article-relative h4{font-family:'\5fae\8f6f\96c5\9ed1',Arial,Verdana;font-size:16px}#randomArticles,.relevantArticles{width:262px;overflow:hidden}#comments{position:relative}#comments,.comment-form{padding-bottom:30px}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{background-image:url(../../../images/emotions/emotions.png);background-size:120px;margin-right:4px}.comment-form{margin-right:15px;color:#606060}h2.comment-label{border-bottom:2px solid #3F3D36;font-size:24px;margin-bottom:15px;margin-top:30px;padding-bottom:7px;color:#363636}.comment-body{padding:20px 0}.comment-body:nth-child(2n){background-color:#F1EEE9}.comment-author{width:100px}.comment-info{margin-right:12px;width:423px}.comment-info>a{font-size:14px;font-weight:700}.comment-content{margin:10px 0}.comment-author img{width:64px;height:64px;border:6px solid #F1EEE9;margin-left:12px}.comment-form img{cursor:pointer}.comment-form input,.comment-form textarea{border-radius:5px;background-color:#EBE9E5;border:1px solid #BABAAE;font-family:\5fae\8f6f\96c5\9ed1;font-size:12px;margin:10px 0;padding:10px;width:400px;outline:0}.comment-form input:focus,.comment-form textarea:focus{background-color:#E3EBCF;border-color:#73B722}#commentValidate,#commentValidateReply{width:80px}.comment-form button{border-radius:5px;border:1px solid #80B53B;color:#355207;cursor:pointer;font-weight:700;height:34px;padding:5px 10px;width:140px}.comment-body-ref{background:url(../images/bg-transparent.png);padding:12px 0;position:absolute;width:537px;border:1px solid #999;border-radius:5px;z-index:10;left:180px}#tagsPanel{min-height:1px}#tagsPanel a{display:block;float:left;border:1px solid #D4D4D4}#tagsPanel a:hover{border:1px solid #BE0700}
\ No newline at end of file
diff --git a/skins/Andrea/footer.ftl b/skins/Andrea/footer.ftl
index dc048a8..7b214f9 100644
--- a/skins/Andrea/footer.ftl
+++ b/skins/Andrea/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="copyright">
     &copy; ${year} - <a href="${servePath}">${blogTitle}</a>${footerContent}<br/>
     Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}<br/>
diff --git a/skins/Andrea/header.ftl b/skins/Andrea/header.ftl
index 5ce4326..9ae745b 100644
--- a/skins/Andrea/header.ftl
+++ b/skins/Andrea/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header">
     <div class="left">
         <h1>
diff --git a/skins/Andrea/index.ftl b/skins/Andrea/index.ftl
index 3db916c..d6793d1 100644
--- a/skins/Andrea/index.ftl
+++ b/skins/Andrea/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/lang/lang_en_US.properties b/skins/Andrea/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/Andrea/lang/lang_en_US.properties
+++ b/skins/Andrea/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Andrea/lang/lang_zh_CN.properties b/skins/Andrea/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/Andrea/lang/lang_zh_CN.properties
+++ b/skins/Andrea/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Andrea/macro-comments.ftl b/skins/Andrea/macro-comments.ftl
index 567227e..d22f412 100644
--- a/skins/Andrea/macro-comments.ftl
+++ b/skins/Andrea/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <h2 class="comment-label">${commentLabel}</h2>
 <div id="comments">
diff --git a/skins/Andrea/macro-head.ftl b/skins/Andrea/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/Andrea/macro-head.ftl
+++ b/skins/Andrea/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/Andrea/page.ftl b/skins/Andrea/page.ftl
index ffccbdd..fbe8286 100644
--- a/skins/Andrea/page.ftl
+++ b/skins/Andrea/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Andrea/side-tool.ftl b/skins/Andrea/side-tool.ftl
index bee084b..c7b53e4 100644
--- a/skins/Andrea/side-tool.ftl
+++ b/skins/Andrea/side-tool.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="side-tool">
     <ul>
         <li>
diff --git a/skins/Andrea/side.ftl b/skins/Andrea/side.ftl
index 1adc0be..e2de52a 100644
--- a/skins/Andrea/side.ftl
+++ b/skins/Andrea/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#if "" != noticeBoard>
 <div class="item" style="margin-top: -35px;">
     <h4>${noticeBoardLabel}</h4>
diff --git a/skins/Andrea/skin.properties b/skins/Andrea/skin.properties
index 2f67936..f7e0b0e 100644
--- a/skins/Andrea/skin.properties
+++ b/skins/Andrea/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Andrea/tag-articles.ftl b/skins/Andrea/tag-articles.ftl
index bdd5721..171bdec 100644
--- a/skins/Andrea/tag-articles.ftl
+++ b/skins/Andrea/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Andrea/tags.ftl b/skins/Andrea/tags.ftl
index 82ef92c..bd05bbb 100644
--- a/skins/Andrea/tags.ftl
+++ b/skins/Andrea/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/archive-articles.ftl b/skins/Bruce/archive-articles.ftl
index 45ddb78..83d7814 100644
--- a/skins/Bruce/archive-articles.ftl
+++ b/skins/Bruce/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/archives.ftl b/skins/Bruce/archives.ftl
index ee3ebf5..1f8fbe7 100644
--- a/skins/Bruce/archives.ftl
+++ b/skins/Bruce/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/article-list.ftl b/skins/Bruce/article-list.ftl
index 15986b0..ec06058 100644
--- a/skins/Bruce/article-list.ftl
+++ b/skins/Bruce/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="row article">
     <h2 class="row article-title">
diff --git a/skins/Bruce/article.ftl b/skins/Bruce/article.ftl
index d12d181..840596d 100644
--- a/skins/Bruce/article.ftl
+++ b/skins/Bruce/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Bruce/category-articles.ftl b/skins/Bruce/category-articles.ftl
index 56b3dbb..dda7bda 100644
--- a/skins/Bruce/category-articles.ftl
+++ b/skins/Bruce/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/common-comment.ftl b/skins/Bruce/common-comment.ftl
index 0c54c2f..eb30119 100644
--- a/skins/Bruce/common-comment.ftl
+++ b/skins/Bruce/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="row comment" id="${comment.oId}">
     <img class="col-sm-1" title="${comment.commentName}"
          alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
diff --git a/skins/Bruce/css/Bruce.css b/skins/Bruce/css/Bruce.css
index c99ab5d..3c10166 100644
--- a/skins/Bruce/css/Bruce.css
+++ b/skins/Bruce/css/Bruce.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * Skin Bruce style.
diff --git a/skins/Bruce/css/Bruce.min.css b/skins/Bruce/css/Bruce.min.css
index b5fd22e..1a1bef8 100644
--- a/skins/Bruce/css/Bruce.min.css
+++ b/skins/Bruce/css/Bruce.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";.article-date,.article-tags,.article-title,.footer{text-align:center}.footer,.header{background-color:#f9f9f9}body,button,input,select,textarea{font:400 1em/1.8 Avenir,Microsoft Yahei,Hiragino Sans GB,Microsoft Sans Serif,WenQuanYi Micro Hei,sans-serif;letter-spacing:.01rem}.site{padding:0 2em;margin:0 auto;font-size:16px}h4,h5,h6{font-weight:700}.article{margin-bottom:90px}.article-tags{font-size:14px}.article-date{font-size:12px;margin-top:6px;margin-bottom:12px}.article-content{font-size:1.1em}.article-content img{max-width:100%}.header{border-bottom:1px solid #ddd;margin-bottom:20px}.nav-item{position:relative;display:inline-block;padding:10px;font-weight:500}.nav-item .page-icon{float:left;height:14px;width:14px;margin:2px 3px 0 0}.comment{margin-bottom:32px}.comment p{margin-bottom:0}#captcha,#captchaReply,#emotions span,#emotionsReply span,.form-control{margin-top:15px}.cmtFromSym{font-size:12px;color:#ccc;margin-bottom:1em}.cmtForm{margin-top:24px}.gray{color:#ccc}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 1px}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.footer{padding:40px 0;margin-top:20px;color:#999;border-top:1px solid #e5e5e5}.article-relative{margin-top:48px}.right{float:right}
\ No newline at end of file
diff --git a/skins/Bruce/css/bootstrap-theme.css b/skins/Bruce/css/bootstrap-theme.css
index eb54d44..578e7a2 100644
--- a/skins/Bruce/css/bootstrap-theme.css
+++ b/skins/Bruce/css/bootstrap-theme.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 .btn-default,
 .btn-primary,
 .btn-success,
diff --git a/skins/Bruce/css/bootstrap-theme.min.css b/skins/Bruce/css/bootstrap-theme.min.css
index 666eefb..f64ae09 100644
--- a/skins/Bruce/css/bootstrap-theme.min.css
+++ b/skins/Bruce/css/bootstrap-theme.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 .alert-danger,.alert-info,.alert-success,.btn-danger,.btn-default,.btn-info,.btn-primary,.btn-success,.btn-warning,.dropdown-menu>.active>a,.dropdown-menu>.active>a:focus,.dropdown-menu>.active>a:hover,.dropdown-menu>li>a:focus,.dropdown-menu>li>a:hover,.list-group-item.active,.list-group-item.active:focus,.list-group-item.active:hover,.navbar-default,.navbar-default .navbar-nav>.active>a,.navbar-inverse,.navbar-inverse .navbar-nav>.active>a,.panel-danger>.panel-heading,.panel-default>.panel-heading,.panel-info>.panel-heading,.panel-primary>.panel-heading,.panel-success>.panel-heading,.panel-warning>.panel-heading,.progress,.progress-bar,.progress-bar-danger,.progress-bar-info,.progress-bar-success,.progress-bar-warning,.well{background-repeat:repeat-x}.btn-danger,.btn-default,.btn-info,.btn-primary,.btn-success,.btn-warning{text-shadow:0 -1px 0 rgba(0,0,0,.2);-webkit-box-shadow:inset 0 1px 0 rgba(255,255,255,.15),0 1px 1px rgba(0,0,0,.075);box-shadow:inset 0 1px 0 rgba(255,255,255,.15),0 1px 1px rgba(0,0,0,.075)}.btn-danger.active,.btn-danger:active,.btn-default.active,.btn-default:active,.btn-info.active,.btn-info:active,.btn-primary.active,.btn-primary:active,.btn-success.active,.btn-success:active,.btn-warning.active,.btn-warning:active{-webkit-box-shadow:inset 0 3px 5px rgba(0,0,0,.125);box-shadow:inset 0 3px 5px rgba(0,0,0,.125)}.btn.active,.btn:active{background-image:none}.btn-default{text-shadow:0 1px 0 #fff;background-image:-webkit-linear-gradient(top,#fff 0,#e0e0e0 100%);background-image:-o-linear-gradient(top,#fff 0,#e0e0e0 100%);background-image:-webkit-gradient(linear,left top,left bottom,from(#fff),to(#e0e0e0));background-image:linear-gradient(to bottom,#fff 0,#e0e0e0 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffffff', endColorstr='#ffe0e0e0', GradientType=0);filter:progid:DXImageTransform.Microsoft.gradient(enabled=false);border-color:#ccc}.btn-default:focus,.btn-default:hover{background-color:#e0e0e0;background-position:0 -15px}.btn-default.active,.btn-default:active{background-color:#e0e0e0;border-color:#dbdbdb}.btn-default:disabled,.btn-default[disabled]{background-color:#e0e0e0;background-image:none}.btn-primary{background-image:-webkit-linear-gradient(top,#428bca 0,#2d6ca2 100%);background-image:-o-linear-gradient(top,#428bca 0,#2d6ca2 100%);background-image:-webkit-gradient(linear,left top,left bottom,from(#428bca),to(#2d6ca2));background-image:linear-gradient(to bottom,#428bca 0,#2d6ca2 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff428bca', endColorstr='#ff2d6ca2', GradientType=0);filter:progid:DXImageTransform.Microsoft.gradient(enabled=false);border-color:#2b669a}.btn-primary:focus,.btn-primary:hover{background-color:#2d6ca2;background-position:0 -15px}.btn-primary.active,.btn-primary:active{background-color:#2d6ca2;border-color:#2b669a}.btn-primary:disabled,.btn-primary[disabled]{background-color:#2d6ca2;background-image:none}.btn-success{background-image:-webkit-linear-gradient(top,#5cb85c 0,#419641 100%);background-image:-o-linear-gradient(top,#5cb85c 0,#419641 100%);background-image:-webkit-gradient(linear,left top,left bottom,from(#5cb85c),to(#419641));background-image:linear-gradient(to bottom,#5cb85c 0,#419641 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5cb85c', endColorstr='#ff419641', GradientType=0);filter:progid:DXImageTransform.Microsoft.gradient(enabled=false);border-color:#3e8f3e}.btn-success:focus,.btn-success:hover{background-color:#419641;background-position:0 -15px}.btn-success.active,.btn-success:active{background-color:#419641;border-color:#3e8f3e}.btn-success:disabled,.btn-success[disabled]{background-color:#419641;background-image:none}.btn-info{background-image:-webkit-linear-gradient(top,#5bc0de 0,#2aabd2 100%);background-image:-o-linear-gradient(top,#5bc0de 0,#2aabd2 100%);background-image:-webkit-gradient(linear,left top,left bottom,from(#5bc0de),to(#2aabd2));background-image:linear-gradient(to bottom,#5bc0de 0,#2aabd2 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5bc0de', endColorstr='#ff2aabd2', GradientType=0);filter:progid:DXImageTransform.Microsoft.gradient(enabled=false);border-color:#28a4c9}.btn-info:focus,.btn-info:hover{background-color:#2aabd2;background-position:0 -15px}.btn-info.active,.btn-info:active{background-color:#2aabd2;border-color:#28a4c9}.btn-info:disabled,.btn-info[disabled]{background-color:#2aabd2;background-image:none}.btn-warning{background-image:-webkit-linear-gradient(top,#f0ad4e 0,#eb9316 100%);background-image:-o-linear-gradient(top,#f0ad4e 0,#eb9316 100%);background-image:-webkit-gradient(linear,left top,left bottom,from(#f0ad4e),to(#eb9316));background-image:linear-gradient(to bottom,#f0ad4e 0,#eb9316 100%);filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff0ad4e', endColorstr='#ffeb9316', GradientType=0);filter:progid:DXImageTransform.Microsoft.gradient(enabled=false);border-color:#e38d13}.btn-warning:focus,.btn-warning:hover{background-color:#eb9316;background-position:0 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\ No newline at end of file
diff --git a/skins/Bruce/css/bootstrap.css b/skins/Bruce/css/bootstrap.css
index 3c0708a..e5ccaaf 100644
--- a/skins/Bruce/css/bootstrap.css
+++ b/skins/Bruce/css/bootstrap.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /** normalize.css v3.0.1 | MIT License | git.io/normalize */
 html {
   font-family: sans-serif;
diff --git a/skins/Bruce/css/bootstrap.min.css b/skins/Bruce/css/bootstrap.min.css
index f2e3988..c2ae5c9 100644
--- a/skins/Bruce/css/bootstrap.min.css
+++ b/skins/Bruce/css/bootstrap.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
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.icon-prev{position:absolute;top:50%;z-index:5;display:inline-block}.carousel-control .glyphicon-chevron-left,.carousel-control .icon-prev{left:50%;margin-left:-10px}.carousel-control .glyphicon-chevron-right,.carousel-control .icon-next{right:50%;margin-right:-10px}.carousel-control .icon-next,.carousel-control .icon-prev{width:20px;height:20px;margin-top:-10px;font-family:serif}.carousel-control .icon-prev:before{content:'\2039'}.carousel-control .icon-next:before{content:'\203a'}.carousel-indicators{position:absolute;bottom:10px;left:50%;z-index:15;width:60%;padding-left:0;margin-left:-30%;text-align:center;list-style:none}.carousel-indicators li{display:inline-block;width:10px;height:10px;margin:1px;text-indent:-999px;cursor:pointer;background-color:#000\9;background-color:rgba(0,0,0,0);border:1px solid #fff;border-radius:10px}.carousel-indicators .active{width:12px;height:12px;margin:0;background-color:#fff}.carousel-caption{position:absolute;right:15%;bottom:20px;left:15%;z-index:10;padding-top:20px;padding-bottom:20px;color:#fff;text-align:center}.carousel-caption .btn,.text-hide{text-shadow:none}@media screen and (min-width:768px){.carousel-control .glyphicon-chevron-left,.carousel-control .glyphicon-chevron-right,.carousel-control .icon-next,.carousel-control .icon-prev{width:30px;height:30px;margin-top:-15px;font-size:30px}.carousel-control .glyphicon-chevron-left,.carousel-control .icon-prev{margin-left:-15px}.carousel-control .glyphicon-chevron-right,.carousel-control .icon-next{margin-right:-15px}.carousel-caption{right:20%;left:20%;padding-bottom:30px}.carousel-indicators{bottom:20px}}.btn-group-vertical>.btn-group:after,.btn-group-vertical>.btn-group:before,.btn-toolbar:after,.btn-toolbar:before,.clearfix:after,.clearfix:before,.container-fluid:after,.container-fluid:before,.container:after,.container:before,.dl-horizontal dd:after,.dl-horizontal dd:before,.form-horizontal .form-group:after,.form-horizontal .form-group:before,.modal-footer:after,.modal-footer:before,.nav:after,.nav:before,.navbar-collapse:after,.navbar-collapse:before,.navbar-header:after,.navbar-header:before,.navbar:after,.navbar:before,.pager:after,.pager:before,.panel-body:after,.panel-body:before,.row:after,.row:before{display:table;content:" "}.btn-group-vertical>.btn-group:after,.btn-toolbar:after,.clearfix:after,.container-fluid:after,.container:after,.dl-horizontal dd:after,.form-horizontal .form-group:after,.modal-footer:after,.nav:after,.navbar-collapse:after,.navbar-header:after,.navbar:after,.pager:after,.panel-body:after,.row:after{clear:both}.center-block{display:block;margin-right:auto;margin-left:auto}.pull-right{float:right!important}.pull-left{float:left!important}.hide{display:none!important}.show{display:block!important}.hidden,.visible-lg,.visible-lg-block,.visible-lg-inline,.visible-lg-inline-block,.visible-md,.visible-md-block,.visible-md-inline,.visible-md-inline-block,.visible-sm,.visible-sm-block,.visible-sm-inline,.visible-sm-inline-block,.visible-xs,.visible-xs-block,.visible-xs-inline,.visible-xs-inline-block{display:none!important}.invisible{visibility:hidden}.text-hide{font:0/0 a;color:transparent;background-color:transparent;border:0}.hidden{visibility:hidden!important}.affix{position:fixed;-webkit-transform:translate3d(0,0,0);-o-transform:translate3d(0,0,0);transform:translate3d(0,0,0)}@-ms-viewport{width:device-width}@media (max-width:767px){.visible-xs{display:block!important}table.visible-xs{display:table}tr.visible-xs{display:table-row!important}td.visible-xs,th.visible-xs{display:table-cell!important}.visible-xs-block{display:block!important}.visible-xs-inline{display:inline!important}.visible-xs-inline-block{display:inline-block!important}}@media (min-width:768px) and (max-width:991px){.visible-sm{display:block!important}table.visible-sm{display:table}tr.visible-sm{display:table-row!important}td.visible-sm,th.visible-sm{display:table-cell!important}.visible-sm-block{display:block!important}.visible-sm-inline{display:inline!important}.visible-sm-inline-block{display:inline-block!important}}@media (min-width:992px) and (max-width:1199px){.visible-md{display:block!important}table.visible-md{display:table}tr.visible-md{display:table-row!important}td.visible-md,th.visible-md{display:table-cell!important}.visible-md-block{display:block!important}.visible-md-inline{display:inline!important}.visible-md-inline-block{display:inline-block!important}}@media (min-width:1200px){.visible-lg{display:block!important}table.visible-lg{display:table}tr.visible-lg{display:table-row!important}td.visible-lg,th.visible-lg{display:table-cell!important}.visible-lg-block{display:block!important}.visible-lg-inline{display:inline!important}.visible-lg-inline-block{display:inline-block!important}.hidden-lg{display:none!important}}@media (max-width:767px){.hidden-xs{display:none!important}}@media (min-width:768px) and (max-width:991px){.hidden-sm{display:none!important}}@media (min-width:992px) and (max-width:1199px){.hidden-md{display:none!important}}.visible-print{display:none!important}@media print{.visible-print{display:block!important}table.visible-print{display:table}tr.visible-print{display:table-row!important}td.visible-print,th.visible-print{display:table-cell!important}}.visible-print-block{display:none!important}@media print{.visible-print-block{display:block!important}}.visible-print-inline{display:none!important}@media print{.visible-print-inline{display:inline!important}}.visible-print-inline-block{display:none!important}@media print{.visible-print-inline-block{display:inline-block!important}.hidden-print{display:none!important}}
\ No newline at end of file
diff --git a/skins/Bruce/footer.ftl b/skins/Bruce/footer.ftl
index a68b0c5..35f484e 100644
--- a/skins/Bruce/footer.ftl
+++ b/skins/Bruce/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer">
     &copy; ${year} - <a href="${servePath}">${blogTitle}</a>${footerContent} Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}
     <div>
diff --git a/skins/Bruce/header.ftl b/skins/Bruce/header.ftl
index 904bcdc..50f98c3 100644
--- a/skins/Bruce/header.ftl
+++ b/skins/Bruce/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 ${topBarReplacement}
 <div class="header">
 
diff --git a/skins/Bruce/index.ftl b/skins/Bruce/index.ftl
index 343a86d..228419d 100644
--- a/skins/Bruce/index.ftl
+++ b/skins/Bruce/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/js/bootstrap.js b/skins/Bruce/js/bootstrap.js
index e079ffe..0e4c07f 100644
--- a/skins/Bruce/js/bootstrap.js
+++ b/skins/Bruce/js/bootstrap.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 if (typeof jQuery === 'undefined') { throw new Error('Bootstrap\'s JavaScript requires jQuery') }
 
diff --git a/skins/Bruce/js/bootstrap.min.js b/skins/Bruce/js/bootstrap.min.js
index a8331da..3ba2bcc 100644
--- a/skins/Bruce/js/bootstrap.min.js
+++ b/skins/Bruce/js/bootstrap.min.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 if("undefined"==typeof jQuery)throw new Error("Bootstrap's JavaScript requires jQuery");/* ========================================================================
  * Bootstrap: transition.js v3.2.0
diff --git a/skins/Bruce/lang/lang_en_US.properties b/skins/Bruce/lang/lang_en_US.properties
index e84469f..dbbc80d 100644
--- a/skins/Bruce/lang/lang_en_US.properties
+++ b/skins/Bruce/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Bruce/lang/lang_zh_CN.properties b/skins/Bruce/lang/lang_zh_CN.properties
index 553eef9..693cf70 100644
--- a/skins/Bruce/lang/lang_zh_CN.properties
+++ b/skins/Bruce/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Bruce/links.ftl b/skins/Bruce/links.ftl
index d326587..dbb8495 100644
--- a/skins/Bruce/links.ftl
+++ b/skins/Bruce/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/macro-comments.ftl b/skins/Bruce/macro-comments.ftl
index b7c238f..313990f 100644
--- a/skins/Bruce/macro-comments.ftl
+++ b/skins/Bruce/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="row" id="comments">
     <#list commentList as comment>
diff --git a/skins/Bruce/macro-head.ftl b/skins/Bruce/macro-head.ftl
index 99d1172..699c6b5 100644
--- a/skins/Bruce/macro-head.ftl
+++ b/skins/Bruce/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/Bruce/page.ftl b/skins/Bruce/page.ftl
index 8b7bdc3..f2b8661 100644
--- a/skins/Bruce/page.ftl
+++ b/skins/Bruce/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Bruce/skin.properties b/skins/Bruce/skin.properties
index f054c12..d79c6d5 100644
--- a/skins/Bruce/skin.properties
+++ b/skins/Bruce/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Bruce/tag-articles.ftl b/skins/Bruce/tag-articles.ftl
index 59e78d0..297dc6d 100644
--- a/skins/Bruce/tag-articles.ftl
+++ b/skins/Bruce/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Bruce/tags.ftl b/skins/Bruce/tags.ftl
index 5effeaa..1b5b03a 100644
--- a/skins/Bruce/tags.ftl
+++ b/skins/Bruce/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/archive-articles.ftl b/skins/Community/archive-articles.ftl
index b21e6e7..acb36ba 100644
--- a/skins/Community/archive-articles.ftl
+++ b/skins/Community/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/article-list.ftl b/skins/Community/article-list.ftl
index 84ea55f..4ff6c18 100644
--- a/skins/Community/article-list.ftl
+++ b/skins/Community/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="marginBottom40">
     <div class="article-header">
diff --git a/skins/Community/article.ftl b/skins/Community/article.ftl
index 861da14..9a69ed3 100644
--- a/skins/Community/article.ftl
+++ b/skins/Community/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Community/author-articles.ftl b/skins/Community/author-articles.ftl
index 009a96d..0119825 100644
--- a/skins/Community/author-articles.ftl
+++ b/skins/Community/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/category-articles.ftl b/skins/Community/category-articles.ftl
index 868e79e..83005b5 100644
--- a/skins/Community/category-articles.ftl
+++ b/skins/Community/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/common-comment.ftl b/skins/Community/common-comment.ftl
index 27ed520..4b10a36 100644
--- a/skins/Community/common-comment.ftl
+++ b/skins/Community/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}">
     <img class="left" alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
     <div class="comment-panel left">
diff --git a/skins/Community/css/Community.css b/skins/Community/css/Community.css
index 18da42f..cae8555 100644
--- a/skins/Community/css/Community.css
+++ b/skins/Community/css/Community.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin community style
diff --git a/skins/Community/css/Community.min.css b/skins/Community/css/Community.min.css
index 385821a..49c1bfc 100644
--- a/skins/Community/css/Community.min.css
+++ b/skins/Community/css/Community.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";#comments .comment-panel .reply a,input[type=button]{box-shadow:0 1px 0 rgba(255,255,255,.3) inset,0 0 2px rgba(255,255,255,.3) inset,0 1px 2px rgba(0,0,0,.29)}.article-footer ul,.article-header ul,.footer-block ul,.header-navi-main .tabs{list-style:none}body{background-color:#EFEFEF;color:#555;min-width:960px}a,a:active,a:link,a:visited{color:#000;text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic;overflow:hidden;font-size:12px}.content{width:940px;margin:0 auto}.content>h2{margin:-20px 0 20px}.hr{background:url(../images/indentline-light.png) left top repeat-x;margin:20px 0 40px;clear:both;height:2px}.arrow-right{background:url(../images/icon.png) 0 -64px no-repeat;float:left;height:38px;width:14px}input[type=button]{border-radius:5px;background-color:#000;background-image:linear-gradient(top,#333,#000);background-image:-moz-linear-gradient(top,#333,#000);background-image:-ms-linear-gradient(top,#333,#000);background-image:-o-linear-gradient(top,#333,#000);background-image:-webkit-gradient(linear,left top,left bottom,from(#333),to(#000));filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#333333', endColorstr='#000000');border:1px solid #000;color:#fff;margin:15px 0 0 200px;padding:7px 13px;height:auto}input[type=button]:hover{background-color:#333;background-image:linear-gradient(top,#333,#212121);background-image:-moz-linear-gradient(top,#333,#212121);background-image:-ms-linear-gradient(top,#333,#212121);background-image:-o-linear-gradient(top,#333,#212121);background-image:-webkit-gradient(linear,left top,left bottom,from(#333),to(#212121));filter:progid:DXImageTransform.Microsoft.gradient(startColorstr='#333333', endColorstr='#212121')}.marginBottom40{margin-bottom:40px}.header-user{background-color:#DEDEDE;padding-top:1px}.header-navi{background:url(../images/icon.png) 0 -130px repeat-x #333;margin-bottom:50px}a.header-title{color:#FFF;text-decoration:none;line-height:49px;font:700 35px/53px '微软雅黑,Arial,Helvetica'}.sub-title{color:#9BC4CE;margin-left:10px}.header-navi-main .tabs{height:57px}.header-navi-main .tab{float:left;font-size:16px;margin-left:1px;height:57px}.header-navi-main .tab:hover{background:url(../images/icon.png) 0 -130px repeat-x #9BC4CE}#header-pages{position:relative}.header-navi-main .tab a{color:#FFF;display:block;font-weight:700;line-height:22px;padding:19px 16px 16px;text-decoration:none}#header-pages:hover .sub-tabs{left:0;list-style:none;position:absolute;top:57px;display:block}.sub-tabs .page-icon{float:left;height:14px;width:14px;margin:15px 5px 0 0}.header-navi-main .sub-tab{background-color:#9BC4CE;border-bottom:1px solid #76A0AA;border-top:1px solid #B4D9E2;margin-left:0}.header-navi-main .sub-tab a{min-width:98px;padding:10px 16px;font-size:14px}.header-navi-main .sub-tab:hover{background-color:#76A0AA}.article-header{color:#9F9F9F;float:left;font-size:12px;padding-top:15px;width:180px}.article-header ul{background-color:#333;width:160px}.article-header ul li{background:url(../images/indentline.png) left bottom repeat-x;font-weight:700;padding:7px 15px 8px;margin-left:0}.article-header ul li a{color:#FFF;display:block}.article-main{background-color:#FFF;border-bottom:1px solid #E3E3E3;border-right:1px solid #E3E3E3;margin-right:20px;padding:20px 20px 0;width:499px;float:left;overflow:hidden}.article-body{line-height:145%}.article-body a{color:#075181}.article-body a:hover{color:#68ADD5}.article-main h2.title{font:700 30px Arial,Helvetica,sans-serif;margin:0 0 20px}.article-main h2.title sup,.read-more a{font-size:12px}.article-detail-footer>a,.pagination a.selected{font-weight:700}.read-more a{background-color:#F2F2F2;color:#333;padding:8px 18px 8px 12px;margin:20px 0;float:left}.article-footer{width:200px;float:left}.article-footer h3{background:url(../images/indentline-light.png) left bottom repeat-x;font-size:17px;padding:25px 0 10px}.article-footer li{margin-left:0;border-bottom:1px solid #E0E0E0;padding:8px 5px}#comments .comment-panel,.article-detail-footer,.pagination{border-bottom:1px solid #E3E3E3;border-right:1px solid #E3E3E3}.article-footer a{color:#888;margin-bottom:2px;display:block}.pagination{background-color:#FFF;margin:0 0 20px 181px;text-align:center;padding:12px 20px;width:499px}.pagination a{color:#555;padding:0 3px;text-decoration:none}.pagination a.selected,.pagination a:hover{text-decoration:underline}.article-detail-body{width:716px;margin-right:0}#replyForm,.article-detail-body .tags{margin:20px 0}.article-detail-footer{background-color:#FFF;margin:40px 0 40px 181px;padding:20px;width:716px}.article-relative{margin-top:20px;width:360px}.article-relative h4{font-size:14px;line-height:25px}.article-relative a{color:#555;line-height:145%}#comments{background:url(../images/indentline-light.png) left top repeat-x;padding-top:30px;position:relative}#comments>div{margin-top:10px}#comments>div>img{margin:1px 10px 10px 0}#comments .comment-panel{background:#FFF;padding:20px;width:798px;margin-bottom:10px;word-wrap:break-word;overflow:hidden}#comments .comment-top{margin-bottom:10px}#comments .comment-panel .reply{margin-top:20px}#comments .comment-panel .reply a{border-radius:5px;background-color:#EEE;border:1px solid #888;color:#555;padding:2px 10px}#comments .comment-panel .reply a:hover{background-color:#E6E6E6;text-decoration:none}.comment-body-ref{position:absolute;border:1px solid #E3E3E3;background-color:#FFF;padding:10px 0 0 10px;left:177px;opacity:.9}#comments .comment-body-ref .comment-panel{border-width:0;margin-bottom:0;width:620px;padding:10px}.comment-title{color:#333;font-size:30px;margin:20px 0 15px;font-family:\5fae\8f6f\96c5\9ed1}.comment{margin-bottom:40px}.comment th{padding:10px 0;text-align:left}.comment input[type=text],.comment textarea{outline:0;color:#666;padding:10px 7px;background-color:#FFF;font-family:Arial,Helvetica,sans-serif;width:723px;border:1px solid #DDD;font-size:12px;height:16px;line-height:16px}.comment textarea{margin:10px 0;padding:7px;height:auto}.comment #captchaReply{margin-left:10px}#commentValidate,#commentValidateReply{width:240px}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{background-image:url(../../../images/emotions/emotions.png);background-size:120px;margin:0 12px}.footer-secondary{background:url(../images/indentline-light.png) left top repeat-x #DEDEDE;padding:40px 0}.article-date,.comment th span.comment-label,.footer-secondary h4{background-color:#333;color:#FFF;float:left;font-size:17px;font-weight:700;height:37px;line-height:37px;padding-left:15px;width:145px}.most-view-count-articles,.notice,.recent-comments{float:left;width:700px;margin-left:65px;word-break:break-all;word-wrap:break-word}.most-view-count-articles a{font:18px 微软雅黑;margin-right:20px;font-weight:700}.most-view-count-articles sup{font-size:12px;color:#555;font-weight:400;margin-right:3px}.recent-comments div{float:left;margin:0 25px 10px 0;text-align:center;width:91px}.recent-comments div a{display:block;line-height:22px}#comments>div>img,.recent-comments img{background-color:#FFF;border-bottom:1px solid #C2C2C2;border-right:1px solid #C2C2C2;padding:8px 7px 7px 8px;width:75px;height:75px}#comments>div>img:hover,.recent-comments img:hover{border-color:#5A5A5A}.footer-widgets{background:url(../images/indentline-light.png) left top repeat-x;padding:40px 0}.footer-block{margin-right:20px;width:220px}.footer-block h4{font:700 18px 微软雅黑;color:#000;height:25px;padding:0 0 15px;background:url(../images/indentline.png) left bottom repeat-x}.footer-block li{margin-left:0;height:30px;padding-left:10px;background:url(../images/indentline-light.png) left bottom repeat-x}.footer-block li.mostUsedTags a{padding-left:20px}.footer-block li img{cursor:pointer;height:16px;left:0;position:relative;top:-20px;width:16px}.footer-block li a{color:#555;display:block;height:19px;line-height:19px;overflow:hidden;padding:6px 0 1px}.footer-block li sup{float:left;margin:5px 3px 0 0}.footer-block li:hover{background:url(../images/icon.png) 0 -34px repeat-x}.footer{background:url(../images/indentline-light.png) left top repeat-x #DEDEDE;text-align:left}.footer .content{line-height:22px}.footer a{color:#000}.error-msg,a.star-current-icon{color:#333}.footer .goTop{background:url(../images/icon.png) -12px -64px no-repeat;cursor:pointer;padding-left:15px;height:17px;line-height:17px}.error-msg{font-weight:700}.error-footer{bottom:0;position:fixed;width:100%}.error-panel{background-color:#FFF;border-bottom:1px solid #E3E3E3;border-right:1px solid #E3E3E3;margin-bottom:50px;padding:20px}.error-panel h2{font:700 30px/24px;margin:0 0 20px}.arrow-dowm-icon,.atom-icon,.down-icon,.read-more-icon,.tag-icon,.up-icon{background-image:url(../images/icon.png);background-repeat:no-repeat;float:left}.read-more-icon{background-position:0 -22px;height:12px;margin:2px 0 0 6px;width:12px}.arrow-dowm-icon{background-position:-13px -22px;height:13px;margin:8px 0 0 6px;width:13px;cursor:pointer}.tag-icon{background-position:0 -102px;margin-right:6px;height:16px;width:16px}.atom-icon{height:22px;margin-left:6px;width:22px}.down-icon,.up-icon{height:12px;margin:6px 0 0 10px;width:11px;cursor:pointer}.up-icon{background-position:-11px -118px}.down-icon{background-position:0 -118px}.moon-current-icon,.moon-icon,.star-current-icon,.star-icon{height:58px;width:64px;background-image:url(../images/author-header.png);float:right;white-space:normal;text-align:center;word-break:break-all;padding-top:6px;word-wrap:break-word;font-weight:700}.star-current-icon{background-position:0 -64px}.star-icon{background-position:0 -192px}a.star-icon{color:orange}.moon-icon{float:right;margin-top:4px}.moon-current-icon{float:right;background-position:0 -128px;margin:1px 0 3px}#tagsPanel a.tagPanel:hover{border:1px dashed}#tagsPanel a.tagPanel{border:1px solid;-moz-border-radius:5px;-webkit-border-radius:5px;border-radius:5px;margin:3px;cursor:pointer;float:left}
\ No newline at end of file
diff --git a/skins/Community/footer.ftl b/skins/Community/footer.ftl
index e097f9b..53884c5 100644
--- a/skins/Community/footer.ftl
+++ b/skins/Community/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="content paddingTop12 paddingBottom12">
     <div class="left">
         <div>
diff --git a/skins/Community/header.ftl b/skins/Community/header.ftl
index f13fc5c..0ce6632 100644
--- a/skins/Community/header.ftl
+++ b/skins/Community/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#if 1 != users?size>
 <div class="header-user">
     <div class="content">
diff --git a/skins/Community/index.ftl b/skins/Community/index.ftl
index 75c8d30..c8cbc33 100644
--- a/skins/Community/index.ftl
+++ b/skins/Community/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/lang/lang_en_US.properties b/skins/Community/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/Community/lang/lang_en_US.properties
+++ b/skins/Community/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Community/lang/lang_zh_CN.properties b/skins/Community/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/Community/lang/lang_zh_CN.properties
+++ b/skins/Community/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Community/macro-comments.ftl b/skins/Community/macro-comments.ftl
index e027cfe..61ef896 100644
--- a/skins/Community/macro-comments.ftl
+++ b/skins/Community/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div id="comments">
     <#list commentList as comment>
diff --git a/skins/Community/macro-head.ftl b/skins/Community/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/Community/macro-head.ftl
+++ b/skins/Community/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/Community/page.ftl b/skins/Community/page.ftl
index 6dc10bd..6c2802f 100644
--- a/skins/Community/page.ftl
+++ b/skins/Community/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Community/side.ftl b/skins/Community/side.ftl
index d9eb17d..992faf5 100644
--- a/skins/Community/side.ftl
+++ b/skins/Community/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer-secondary">
     <div class="content">
         <#if "" != noticeBoard>
diff --git a/skins/Community/skin.properties b/skins/Community/skin.properties
index a560d12..2836201 100644
--- a/skins/Community/skin.properties
+++ b/skins/Community/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Community/tag-articles.ftl b/skins/Community/tag-articles.ftl
index e2c6e35..a6cdbbd 100644
--- a/skins/Community/tag-articles.ftl
+++ b/skins/Community/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Community/tags.ftl b/skins/Community/tags.ftl
index a8d12f8..ce42c0b 100644
--- a/skins/Community/tags.ftl
+++ b/skins/Community/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/archive-articles.ftl b/skins/Finding/archive-articles.ftl
index c162cc7..d4dd003 100644
--- a/skins/Finding/archive-articles.ftl
+++ b/skins/Finding/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/archives.ftl b/skins/Finding/archives.ftl
index fc8ce87..bb5d13a 100644
--- a/skins/Finding/archives.ftl
+++ b/skins/Finding/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/article-list.ftl b/skins/Finding/article-list.ftl
index b6bd7df..9a353ca 100644
--- a/skins/Finding/article-list.ftl
+++ b/skins/Finding/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#if !isIndex && paginationCurrentPageNum != 1>
 <nav class="pagination fn-clear fn-wrap" role="navigation">
     <#if paginationCurrentPageNum != 1>
diff --git a/skins/Finding/article.ftl b/skins/Finding/article.ftl
index 30ef790..985036c 100644
--- a/skins/Finding/article.ftl
+++ b/skins/Finding/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Finding/author-articles.ftl b/skins/Finding/author-articles.ftl
index 374fa84..b399e44 100644
--- a/skins/Finding/author-articles.ftl
+++ b/skins/Finding/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/category-articles.ftl b/skins/Finding/category-articles.ftl
index 387ca84..c4cf581 100644
--- a/skins/Finding/category-articles.ftl
+++ b/skins/Finding/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/category.ftl b/skins/Finding/category.ftl
index 436c770..70fa164 100644
--- a/skins/Finding/category.ftl
+++ b/skins/Finding/category.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/common-comment.ftl b/skins/Finding/common-comment.ftl
index 02e1596..e3f4e13 100644
--- a/skins/Finding/common-comment.ftl
+++ b/skins/Finding/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}" class="fn-clear">
     <div class="fn-left avatar-warp">
         <img class="avatar-48" title="${comment.commentName}" src="${comment.commentThumbnailURL}">
diff --git a/skins/Finding/css/Finding.css b/skins/Finding/css/Finding.css
index accabf6..72f5d3b 100644
--- a/skins/Finding/css/Finding.css
+++ b/skins/Finding/css/Finding.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin finding style
diff --git a/skins/Finding/css/Finding.min.css b/skins/Finding/css/Finding.min.css
index d1e73e6..6578382 100644
--- a/skins/Finding/css/Finding.min.css
+++ b/skins/Finding/css/Finding.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";body,html{height:100%;max-height:100%}body,dl,h1,h2,h3,h4,h5,h6,ol,p,ul{text-rendering:geometricPrecision}.nav li a,dl dt{text-overflow:ellipsis}dl dd,dl dt{margin-bottom:1em}body,li li{margin:0}blockquote cite,dl dt{font-weight:700}dl,ol,p,pre,ul{margin:0 0 1.75em}.fn-left,dl dt{float:left}html{font-size:62.5%;-webkit-tap-highlight-color:transparent}body{font-family:Merriweather,"Microsoft Yahei",Helvetica;letter-spacing:.01rem;font-size:1.8rem;line-height:1.75em;color:#3A4145;-webkit-font-feature-settings:'kern' 1;-moz-font-feature-settings:'kern' 1;-o-font-feature-settings:'kern' 1}::-moz-selection{background:#D6EDFF}::selection{background:#D6EDFF}a{color:#4A4A4A;transition:color .3s ease}a:hover{color:#111}h1,h2,h3,h4,h5,h6{-webkit-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;-moz-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;-o-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;color:#2E2E2E;line-height:1.15em;font-family:"Open Sans","Microsoft Yahei",Helvetica}code,pre,tt{font-family:Inconsolata,monospace,"Microsoft Yahei",Helvetica;background:#F7FAFB}h1{font-size:5rem;letter-spacing:-2px;text-indent:-3px}.page-title a,h2{letter-spacing:-1px}h2{font-size:3.6rem}h3{font-size:3rem}h4{font-size:2.5rem}h5,h6{font-size:2rem}img{max-width:100%;height:auto}dl,ol,p,ul{-webkit-font-feature-settings:'liga' 1,'onum' 1,'kern' 1;-moz-font-feature-settings:'liga' 1,'onum' 1,'kern' 1;-o-font-feature-settings:'liga' 1,'onum' 1,'kern' 1}ol,ul{padding-left:3rem}ol ol,ol ul,ul ol,ul ul{padding-left:2em;margin-bottom:0}dl dt{width:180px;overflow:hidden;clear:left;text-align:right;white-space:nowrap}dl dd{margin-left:200px}hr{display:block;height:1px;border:0;border-top:#EFEFEF 1px solid;margin:3.2em 0;padding:0}blockquote{-moz-box-sizing:border-box;box-sizing:border-box;margin:1.75em 0 1.75em -2.2em;padding:0 0 0 1.75em;border-left:#4A4A4A .4em solid}blockquote p{margin:.8em 0;font-style:italic}blockquote small{display:inline-block;margin:.8em 0 .8em 1.5em;font-size:.9em;color:#CCC}blockquote small:before{content:"\2014 \00A0"}blockquote cite a{font-weight:400}mark{background-color:#fdffb6}code,tt{padding:1px 3px;font-size:.85em;white-space:pre-wrap;border:1px solid #E3EDF3;border-radius:2px}pre{-moz-box-sizing:border-box;box-sizing:border-box;border:1px solid #E3EDF3;width:100%;padding:10px;font-size:.9em;white-space:pre;overflow:auto;border-radius:3px}pre code,pre tt{font-size:inherit;white-space:pre-wrap;background:0 0;border:none;padding:0}.fn-clear:after,.fn-clear:before{display:table;content:""}.fn-clear:after{clear:both}.fn-right{float:right}.fn-none{display:none}.fn-vertical{display:table-cell;vertical-align:middle}.fn-wrap{width:80%;max-width:768px;margin:0 auto}@-webkit-keyframes fade-in-down{0%{opacity:0;-webkit-transform:translateY(-10px);transform:translateY(-10px)}100%{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@keyframes fade-in-down{0%{opacity:0;-webkit-transform:translateY(-10px);transform:translateY(-10px)}100%{opacity:1;-webkit-transform:translateY(0);transform:translateY(0)}}@-webkit-keyframes bounce{0%,10%,25%,40%,50%{-webkit-transform:translateY(0);transform:translateY(0)}20%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}30%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}@keyframes bounce{0%,100%,20%,50%,80%{-webkit-transform:translateY(0);transform:translateY(0)}40%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}60%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}@-webkit-keyframes upbounce{0%,10%,25%,40%,50%{-webkit-transform:translateY(0);transform:translateY(0)}20%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}30%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}@keyframes upbounce{0%,100%,20%,50%,80%{-webkit-transform:translateY(0);transform:translateY(0)}40%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}60%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}@font-face{font-family:icomoon;src:url(fonts/icomoon.eot?v=1);src:url(fonts/icomoon.eot?v=1#iefix) format("embedded-opentype"),url(fonts/icomoon.woff?v=1) format("woff"),url(fonts/icomoon.ttf?v=1) format("truetype"),url(fonts/icomoon.svg?v=1#icons) format("svg");font-weight:400;font-style:normal}[class*=" icon-"]:before,[class^=icon-]:before{font-size:2rem;font-family:icomoon,"Open Sans","Microsoft Yahei",Helvetica;speak:none;font-style:normal;font-weight:400;font-variant:normal;text-transform:none;line-height:1;text-decoration:none!important;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.menu-button,.nav a,.page-title a,.post-meta a,.post-title a,.scroll-down{text-decoration:none}.icon-sitemap:before{content:"\e900"}.icon-list:before{content:"\e901"}.icon-arrow-left:before{content:"\f605";font-size:3.5rem}.icon-menu:before{content:"\f609"}.main-header .icon-menu:before{vertical-align:-4px}.icon-login:before{content:"\e611"}.icon-logout:before{content:"\e601"}.icon-setting:before{content:"\e602"}.icon-register:before{content:"\e600"}.avatar{border-radius:100%;float:left;height:24px;margin-right:9px;width:24px}.avatar-warp{width:10%;padding-right:10px;box-sizing:border-box}.avatar-48{box-shadow:0 0 2px #ddd;height:auto;width:48px;margin-right:10px;border-radius:24px}.form{width:100%;margin-top:50px}.form button,.form input,.form textarea{border:1px solid #CCC;background-color:#FAFAFA;border-radius:3px;box-shadow:0 1px 2px rgba(0,0,0,.075) inset;padding:7px 8px;width:100%;box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;font-family:"Microsoft Yahei",Helvetica;outline:0}.form button{width:auto;vertical-align:bottom}.form input:focus,.form textarea:focus{background-color:#FFF;box-shadow:0 1px 2px rgba(0,0,0,.075) inset,0 0 5px rgba(81,167,232,.5);border:1px solid #51A7E8}.error-msg{font-size:1.5rem;color:#9EABB3}.cmtFromSym{font-size:1rem;color:#9EABB3}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 0}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.main-header{position:relative;display:table;width:100%;height:100vh;margin-bottom:5rem;text-align:center;background:url(../images/header-bg.jpg) center center no-repeat #222;background-size:cover;overflow:hidden;min-height:50vh}.site-wrapper{position:relative;z-index:10;min-height:100%;background:#fff;-webkit-transition:-webkit-transform .5s ease;transition:transform .5s ease}.nav-opened .site-wrapper{overflow-x:hidden;-webkit-transform:translate3D(-240px,0,0);-ms-transform:translate3D(-240px,0,0);transform:translate3D(-240px,0,0);-webkit-transition:-webkit-transform .3s ease;transition:transform .3s ease}.page-title a{-webkit-animation:fade-in-down .6s;animation:fade-in-down .6s;-webkit-animation-delay:.2s;animation-delay:.2s;margin:10px 0;font-size:5rem;font-weight:700;font-family:"Open Sans","Microsoft Yahei",Helvetica;color:#fff;text-shadow:0 0 3px rgba(0,0,0,.9)}.page-description,.page-description a{-webkit-animation:fade-in-down .9s;animation:fade-in-down .9s;-webkit-animation-delay:.1s;animation-delay:.1s;margin:0;font-size:2rem;line-height:1.5em;font-weight:400;letter-spacing:.01rem;color:rgba(255,255,255,.8)}.scroll-down{display:block;position:absolute;z-index:100;bottom:45px;left:50%;margin-left:-16px;width:34px;height:34px;font-size:34px;text-align:center;color:rgba(255,255,255,.7);-webkit-animation:bounce 4s 2s infinite;animation:bounce 4s 2s infinite}.scroll-down:hover{color:#fff;-webkit-animation:none;animation:none}.menu-button{position:fixed;box-sizing:border-box;display:inline-block;float:right;height:38px;padding:0 15px;opacity:1;font-size:12px;text-transform:uppercase;line-height:46px;border-radius:3px;transition:all .5s ease;right:20px;top:40px;font-family:'Open Sans',"Microsoft Yahei",Helvetica;z-index:30;overflow:hidden;background-color:#111;border:1px solid #111;color:#fff;cursor:pointer}.pagination,.post-meta,.read-next-story .post:before,.site-footer{font-family:"Open Sans","Microsoft Yahei",Helvetica}.menu-button:hover{background:#fff}.menu-button:focus{outline:0}.nav-closed .menu-button:hover{color:#222}.nav-opened .menu-button{padding:0 12px;background:#111;border-color:#111;color:#fff;-webkit-transform:translate3D(50px,0,0);-ms-transform:translate3D(50px,0,0);transform:translate3D(50px,0,0);transition:all .3s ease;right:287px;z-index:10;width:46px;border-radius:3px 0 0 3px}.menu-button .word{float:right;margin:-4px 0 0 10px}.nav{position:fixed;top:0;right:0;bottom:0;z-index:5;width:220px;padding:10px 10px 0;opacity:0;background:#111;margin-bottom:0;text-align:left;overflow-y:auto;color:#FFF;-webkit-transition:-webkit-transform .5s ease,opacity .3s ease .7s;transition:transform .5s ease,opacity .3s ease .7s;overflow-x:hidden}.nav ul{margin:0;padding:0 0 5%;list-style:none;counter-reset:item}.nav li{height:30px;line-height:1.4rem}.nav li:before{display:block;float:right;padding-right:4%;padding-left:5px;text-align:right;font-size:1.2rem;vertical-align:bottom;color:#B8B8B8;content:counter(item,lower-roman);counter-increment:item;line-height:2.5rem}.nav a{color:#989898;line-height:1.4;font-size:1.4rem}.nav a.current,.nav a:hover{color:#FFF}.nav li a{display:block;padding:.6rem 4%;overflow:hidden;white-space:nowrap}.nav li a:after{display:inline-block;content:" .......................................................";color:rgba(255,255,255,.2);margin-left:5px}.nav .count{position:absolute;bottom:10px;font-size:1rem;width:100%;word-wrap:normal;word-break:break-all;white-space:nowrap}.nav .b3-solo-list li.current a{color:#fff}.nav .page-icon{float:left;height:14px;width:14px;margin:3px 4px 0 0}body.nav-closed .nav{-webkit-transform:translate3D(97px,0,0);-ms-transform:translate3D(97px,0,0);transform:translate3D(97px,0,0)}body.nav-opened .nav{opacity:1;-webkit-transition:-webkit-transform .3s ease,opacity 0s ease 0s;transition:transform .3s ease,opacity 0s ease 0s;-webkit-transform:translate3D(0,0,0);-ms-transform:translate3D(0,0,0);transform:translate3D(0,0,0)}article.post{position:relative;margin:4rem auto;padding-bottom:4rem;border-bottom:#EBF2F6 1px solid;word-wrap:break-word;width:80%}article.post:after{display:block;content:"";width:7px;height:7px;border:1px solid #E7EEF2;position:absolute;bottom:-5px;left:50%;margin-left:-5px;background:#FFF;border-radius:100%;box-shadow:#FFF 0 0 0 5px}.post-meta time,.post-tip{display:inline-block;white-space:nowrap;text-transform:uppercase}.post-tip{font-size:1.3rem;color:#9EABB3}.post-excerpt p{margin:0;font-size:.9em;line-height:1.7em}.post-meta{color:#9eabb3;font-size:1.5rem;line-height:2.2rem;margin:1.75rem 0 0}.post-meta a{color:#9EABB3}.post-meta a:hover{text-decoration:underline}#tags li a,.dynamic a,.icon-gotop,.pagination a,.read-next-story,.site-footer a{text-decoration:none}.post-meta time{border-left:1px solid #d5dbde;font-size:1.3rem;margin-left:8px;padding-left:12px}.post-author{box-sizing:border-box;display:block;position:absolute;bottom:-57px;left:50%;margin-left:-40px;width:80px;height:80px;border-radius:100%;overflow:hidden;padding:6px;background:#fff;z-index:2;box-shadow:#E7EEF2 0 0 0 1px}.post-author a{background-size:cover;background-position:center center;width:68px;height:68px;display:block;border-radius:35px}.share .icon{cursor:pointer;transition:all .2s ease-out 0s;display:inline-block;font-size:16px;margin-top:15px}.share .icon:hover{transform:rotate(360deg);color:#9EABB3}.icon-weibo:before{content:"\e605"}.icon-twitter:before{content:"\e60b"}.icon-tencent:before{content:"\e60d"}.icon-google:before{content:"\e603"}.icon-gotop:before{content:"\E60A";font-weight:700}.icon-gotop{cursor:pointer;position:fixed;bottom:30px;right:30px;-webkit-animation:upbounce 4s 2s infinite;animation:upbounce 4s 2s infinite;z-index:10}.icon-gotop:hover{color:#B8B8B8;-webkit-animation:none;animation:none}.pagination{font-size:1.3rem;color:#9eabb3;text-align:center}.pagination a{color:#9EABB3;transition:all .2s ease;padding:0 15px;border:1px solid #bfc8cd;display:inline-block;border-radius:4px}.pagination a:hover{border-color:#98a0a4;color:#889093}ul.comments{padding:0;list-style:none;margin-top:100px;position:relative}.comments li{padding:10px;white-space:normal;word-wrap:break-word;position:relative;border-bottom:#EBF2F6 1px solid}.comments li:hover{background-color:#F7F7F7}.comments li img{vertical-align:sub}.comments .comment-content{margin:8px 0 0}.comments li.comment-body-ref{position:absolute;z-index:10;background-color:#EBF2F6;border:1px solid #d5dbde;width:86%;left:69px}.comments .post-meta{margin-top:0}#captcha,#captchaReply{height:27px;display:inline-block;vertical-align:inherit}.read-next{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-align:stretch;-webkit-align-items:stretch;-ms-flex-align:stretch;align-items:stretch;margin-top:10rem}.read-next-story{display:-webkit-box;display:-webkit-flex;display:-ms-flexbox;display:flex;-webkit-box-flex:1;-webkit-flex-grow:1;-ms-flex-positive:1;flex-grow:1;min-width:50%;position:relative;text-align:center;color:#fff;background:center center no-repeat #222;background-size:cover;overflow:hidden}.read-next-story a{color:#BBB}.read-next-story a:hover{color:#FFF}.read-next-story:hover:before{background:rgba(0,0,0,.8);transition:all .2s ease}.read-next-story:hover .post:before{color:#222;background:#fff;transition:all .2s ease}.read-next-story:before{content:"";display:block;position:absolute;top:0;right:0;bottom:0;left:0;background:rgba(0,0,0,.7);transition:all .5s ease}.read-next-story .post{padding-top:6rem;padding-bottom:6rem;width:80%;position:relative;margin:0 auto}.read-next-story .post:before{content:"Read This Next";padding:4px 10px 5px;text-transform:uppercase;font-size:1.1rem;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.5);border-radius:4px;transition:all .5s ease}.read-next-story.prev .post:before{content:"Read This Before"}.read-next-story h2{margin-top:1rem;color:#fff}.read-next-story p{margin:0;color:rgba(255,255,255,.8)}.read-next+.site-footer{position:absolute;bottom:0;left:0;right:0;margin:0}#tags{padding:0}#tags li{list-style:none;float:left}#tags li a{border:1px solid #4A4A4A;display:inline-block;padding:10px;margin:1rem;border-radius:5px}#tags li a:hover{border:1px solid #FFF;color:#FFF;background-color:#4A4A4A}.dynamic .read-next-story>div{position:relative;width:60%;margin:50px auto;text-align:left}.dynamic a{margin:0;color:rgba(255,255,255,.8)}.dynamic a:hover{color:rgba(255,255,255,.5)}.site-footer{position:relative;margin:8rem 0 0;padding:1rem 15px;font-size:1rem;line-height:1.75em;color:#BBC7CC}.site-footer a{color:#BBC7CC;font-weight:700}.site-footer a:hover{text-decoration:underline}@media only screen and (max-width:900px){blockquote{margin-left:0}.main-header{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;min-height:240px;height:60vh;padding:15% 0}.scroll-down{display:none}.page-title,.page-title a{font-size:4rem;letter-spacing:-1px}.page-description,.page-description a{font-size:1.8rem;line-height:1.5em}.post{font-size:.95em}hr{margin:2.4em 0}ol,ul{padding-left:2em}h1{font-size:4.5rem;text-indent:-2px}h2{font-size:3.6rem}h3{font-size:3.1rem}h4{font-size:2.5rem}h5{font-size:2.2rem}h6{font-size:1.8rem}.read-next{-webkit-box-orient:vertical;-webkit-box-direction:normal;-webkit-flex-direction:column;-ms-flex-direction:column;flex-direction:column;margin-top:4rem}}@media only screen and (max-width:500px){.main-header{margin-bottom:15px;height:40vh}.pagination{width:auto;margin:2rem auto}.post{width:auto;padding-bottom:2rem;line-height:1.65em;margin:2rem 16px}hr{margin:1.75em 0}dl,ol,p,ul{font-size:.95em;margin:0 0 2.5rem}.page-title,.page-title a{font-size:3rem}.post-excerpt p{font-size:.85em}.page-description,.page-description a{font-size:1.6rem}h1,h2,h3,h4,h5,h6{margin:0 0 .3em}h1{font-size:2.8rem;letter-spacing:-1px}h2{font-size:2.4rem;letter-spacing:0}h3{font-size:2.1rem}h4{font-size:1.9rem}h5,h6{font-size:1.8rem}.post-content img{padding:0;width:calc(100% + 32px);min-width:0;max-width:112%}.post-meta{font-size:1.3rem;margin-top:1rem}.site-footer{margin-top:3rem}.read-next{margin-top:2rem;margin-bottom:-37px}.read-next .post{width:100%}.menu-button{border:0;top:0;right:0}.nav-closed .menu-button:hover{color:#FFF;background-color:transparent}.post-author{width:40px;height:40px;bottom:-37px;padding:3px;margin-left:-20px}.post-author a{width:34px;height:34px;display:block;border-radius:17px}.nav .count{line-height:1.5rem}#tags li a{padding:0 5px}}
\ No newline at end of file
diff --git a/skins/Finding/dynamic.ftl b/skins/Finding/dynamic.ftl
index aeee27b..2593046 100644
--- a/skins/Finding/dynamic.ftl
+++ b/skins/Finding/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/footer.ftl b/skins/Finding/footer.ftl
index 7780a85..a54226d 100644
--- a/skins/Finding/footer.ftl
+++ b/skins/Finding/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <footer class="site-footer fn-clear">
     <a href="${servePath}">${blogTitle}</a> 
     &copy; ${year}
diff --git a/skins/Finding/header.ftl b/skins/Finding/header.ftl
index 233f64e..7df47ba 100644
--- a/skins/Finding/header.ftl
+++ b/skins/Finding/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <header class="main-header"<#if !isIndex> style='height:30vh;'</#if>>
     <div class="fn-vertical">
         <div class="main-header-content fn-wrap">
diff --git a/skins/Finding/index.ftl b/skins/Finding/index.ftl
index bed3ffc..f9eb27a 100644
--- a/skins/Finding/index.ftl
+++ b/skins/Finding/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/js/Finding.js b/skins/Finding/js/Finding.js
index 3cb09ba..389c680 100644
--- a/skins/Finding/js/Finding.js
+++ b/skins/Finding/js/Finding.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview util and every page should be used.
diff --git a/skins/Finding/js/Finding.min.js b/skins/Finding/js/Finding.min.js
index 0042949..493a2da 100644
--- a/skins/Finding/js/Finding.min.js
+++ b/skins/Finding/js/Finding.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var Finding={init:function(){Util.killIE(),this._initToc(),$(".scroll-down").click(function(t){t.preventDefault();var o=$(this),n=$("html, body"),i=!!o.attr("data-offset")&&o.attr("data-offset"),e=parseInt(i);n.stop(!0,!1).animate({scrollTop:$(this.hash).offset().top+e},500)}),$("body").append('<a class="icon-gotop fn-none" href="javascript:Util.goTop()"></a><span class="menu-button icon-menu"><span class="word">Menu</span></span>'),$(".menu-button").click(function(t){t.stopPropagation(),$("body").toggleClass("nav-opened nav-closed")}),$(window).scroll(function(){$(window).scrollTop()>$(".main-header").height()?$(".icon-gotop").show():$(".icon-gotop").hide()})},_initToc:function(){if(0===$(".b3-solo-list li").length)return $(".nav .icon-list").hide(),void $(".nav .icon-sitemap").click();$(".nav ul:first").after($(".b3-solo-list")),$("body").toggleClass("nav-opened nav-closed"),$(".nav .icon-list").show(),Finding.tabNav("toc");var t=$(".article-body [id^=b3_solo_h]"),o=$(".b3-solo-list");$(window).scroll(function(n){if(0===$(".b3-solo-list li").length)return!1;var i=[];t.each(function(t){i.push({id:this.id,offsetTop:this.offsetTop})});for(var e=$(window).scrollTop(),s=0,a=i.length;s<a;s++)if(e<i[s].offsetTop+280){o.find("li").removeClass("current");var l=s>0?s-1:0;o.find('a[href="#'+i[l].id+'"]').parent().addClass("current");break}e>=i[i.length-1].offsetTop+280&&(o.find("li").removeClass("current"),o.find("li:last").addClass("current"))}),$(window).scroll()},tabNav:function(t){$(".nav .current").removeClass("current"),"toc"===t?($(".nav ul:first").hide(),$(".nav ul:last").show(),$(".icon-list").addClass("current")):($(".nav ul:first").show(),$(".nav ul:last").hide(),$(".icon-sitemap").addClass("current"))},share:function(){$(".share span").click(function(){var t=$(this).data("type"),o=encodeURIComponent($("title").text()),n=$(".post-title a").attr("href")?$(".post-title a").attr("href"):location,i=$(".post-content img:eq(0)").attr("src"),e={};e.tencent="http://share.v.t.qq.com/index.php?c=share&a=index&title="+o+"&url="+n+"&pic="+i,e.weibo="http://v.t.sina.com.cn/share/share.php?title="+o+"&url="+n+"&pic="+i,e.google="https://plus.google.com/share?url="+n,e.twitter="https://twitter.com/intent/tweet?status="+o+" "+n,window.open(e[t],"_blank","top=100,left=200,width=648,height=618")})}};Finding.init();
\ No newline at end of file
diff --git a/skins/Finding/lang/lang_en_US.properties b/skins/Finding/lang/lang_en_US.properties
index cdc110b..0ad39db 100644
--- a/skins/Finding/lang/lang_en_US.properties
+++ b/skins/Finding/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Finding/lang/lang_zh_CN.properties b/skins/Finding/lang/lang_zh_CN.properties
index 1143be9..d74f151 100644
--- a/skins/Finding/lang/lang_zh_CN.properties
+++ b/skins/Finding/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Finding/links.ftl b/skins/Finding/links.ftl
index 8729ac8..cee8580 100644
--- a/skins/Finding/links.ftl
+++ b/skins/Finding/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/macro-comments.ftl b/skins/Finding/macro-comments.ftl
index e5dbf26..5afec2b 100644
--- a/skins/Finding/macro-comments.ftl
+++ b/skins/Finding/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <ul class="comments fn-wrap" id="comments">
     <#list commentList as comment>
diff --git a/skins/Finding/macro-head.ftl b/skins/Finding/macro-head.ftl
index 5653c5f..0e48670 100644
--- a/skins/Finding/macro-head.ftl
+++ b/skins/Finding/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/Finding/page.ftl b/skins/Finding/page.ftl
index 52834cd..c8ce86c 100644
--- a/skins/Finding/page.ftl
+++ b/skins/Finding/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Finding/side.ftl b/skins/Finding/side.ftl
index 5e9d502..09f6d77 100644
--- a/skins/Finding/side.ftl
+++ b/skins/Finding/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="fn-clear">
     <span class="fn-right">
         <a href="javascript:Finding.tabNav('link')" title="${permalinkLabel}" class="icon-sitemap current"></a>
diff --git a/skins/Finding/skin.properties b/skins/Finding/skin.properties
index 849d1ea..b5b1076 100644
--- a/skins/Finding/skin.properties
+++ b/skins/Finding/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Finding/tag-articles.ftl b/skins/Finding/tag-articles.ftl
index 5a08760..63b1748 100644
--- a/skins/Finding/tag-articles.ftl
+++ b/skins/Finding/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Finding/tags.ftl b/skins/Finding/tags.ftl
index ae94583..0264fdf 100644
--- a/skins/Finding/tags.ftl
+++ b/skins/Finding/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/archive-articles.ftl b/skins/Medium/archive-articles.ftl
index 4493008..511437c 100644
--- a/skins/Medium/archive-articles.ftl
+++ b/skins/Medium/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/archives.ftl b/skins/Medium/archives.ftl
index c2f3f06..958d6a5 100644
--- a/skins/Medium/archives.ftl
+++ b/skins/Medium/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/article-list.ftl b/skins/Medium/article-list.ftl
index 5a24bcf..6fd6178 100644
--- a/skins/Medium/article-list.ftl
+++ b/skins/Medium/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="fn-clear article__wrap">
 <#list articles as article>
     <article class="article__item
diff --git a/skins/Medium/article.ftl b/skins/Medium/article.ftl
index e698b89..377481f 100644
--- a/skins/Medium/article.ftl
+++ b/skins/Medium/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Medium/bottom.ftl b/skins/Medium/bottom.ftl
index 9912ecc..cb14884 100644
--- a/skins/Medium/bottom.ftl
+++ b/skins/Medium/bottom.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer__tag wrapper fn-flex">
 <#if 0 != mostUsedCategories?size>
     <div class="fn-flex-1">
diff --git a/skins/Medium/bottom2.ftl b/skins/Medium/bottom2.ftl
index a20c54c..5880804 100644
--- a/skins/Medium/bottom2.ftl
+++ b/skins/Medium/bottom2.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer__tag wrapper">
 <#if 0 != mostUsedCategories?size>
     <#list mostUsedCategories as category>
diff --git a/skins/Medium/category-articles.ftl b/skins/Medium/category-articles.ftl
index 8fc7929..ded23b7 100644
--- a/skins/Medium/category-articles.ftl
+++ b/skins/Medium/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/common-comment.ftl b/skins/Medium/common-comment.ftl
index 43faf05..3838c0d 100644
--- a/skins/Medium/common-comment.ftl
+++ b/skins/Medium/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="comment__item">
     <img class="comment__avatar" src="${comment.commentThumbnailURL}"/>
     <main class="comment__body">
diff --git a/skins/Medium/css/base.css b/skins/Medium/css/base.css
index b21b3fc..c7d85d5 100644
--- a/skins/Medium/css/base.css
+++ b/skins/Medium/css/base.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /*
  * skin style
  *
diff --git a/skins/Medium/css/base.min.css b/skins/Medium/css/base.min.css
index 2c8c537..ded8be6 100644
--- a/skins/Medium/css/base.min.css
+++ b/skins/Medium/css/base.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 blockquote,body,dd,dl,h1,h2,h3,h4,h5,h6,ol,p,ul{margin:0}.content-reset,body,button,input,select,textarea{font-family:"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif}.ft-green,.header,.header__a,.header__icon,.post__view,.tag{transition:all 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h1,.header__icon.avatar,.tag{display:inline-block}.tag,.tag:hover{color:rgba(0,0,0,.68)}@keyframes 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\ No newline at end of file
diff --git a/skins/Medium/footer.ftl b/skins/Medium/footer.ftl
index a7adaf3..416f1db 100644
--- a/skins/Medium/footer.ftl
+++ b/skins/Medium/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="wrapper">
     <footer class="footer">
         <div class="fn-clear">
diff --git a/skins/Medium/header.ftl b/skins/Medium/header.ftl
index 516e5c8..1ce9cc0 100644
--- a/skins/Medium/header.ftl
+++ b/skins/Medium/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <svg style="position: absolute; width: 0; height: 0; overflow: hidden;" version="1.1"
      xmlns="http://www.w3.org/2000/svg">
     <defs>
diff --git a/skins/Medium/index.ftl b/skins/Medium/index.ftl
index 2a3c349..7c1962c 100644
--- a/skins/Medium/index.ftl
+++ b/skins/Medium/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/js/common.js b/skins/Medium/js/common.js
index 1280d8a..143d4ca 100644
--- a/skins/Medium/js/common.js
+++ b/skins/Medium/js/common.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview util and every page should be used.
diff --git a/skins/Medium/js/common.min.js b/skins/Medium/js/common.min.js
index ec7b472..874d228 100644
--- a/skins/Medium/js/common.min.js
+++ b/skins/Medium/js/common.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var Skin={init:function(){$("body").on("click",".content-reset img",function(){window.open(this.src)}),$(window).scroll(function(){0!==$("#headerNav").length&&($(window).scrollTop()>64?($("#headerNav").addClass("header__nav--fixed"),$(".main").css("margin-top","100px")):($("#headerNav").removeClass("header__nav--fixed"),$(".main").css("margin-top","50px")))}),$(window).scroll()},initArticle:function(){Skin._share("#articleShare"),Skin._share("#articleSideShare"),Skin._share("#articleBottomShare");var t=$(".post__side");$(window).height()>=$(".post").height()&&t.css("opacity",1),t.css("left",($(".post").offset().left-20)/2-27+"px");var e=($(window).height()-249)/2+125,i=$(window).scrollTop();$(window).scroll(function(){var o=$(window).scrollTop(),a=$(".article__bottom").offset().top;o>65?(t.css("opacity",1),i-o>0?($(".header").addClass("header--fixed").css({top:"0"}),$(".main").css("padding-top","64px"),$(window).height()<=$(".post").height()&&o<a-$(window).height()&&$(".article__toolbar").css({bottom:0,opacity:1})):i-o<0&&($(".header").css({top:"-64px"}).removeClass("header--fixed"),$(".main").css("padding-top","0"),$(".article__toolbar").css({bottom:"-44px",opacity:0}))):($(window).height()<=$(".post").height()&&t.css("opacity",0),$(".header").removeClass("header--fixed").css("top","-64px"),$(".main").css("padding-top","0")),o>a-$(window).height()?a<$(window).height()?t.css({position:"absolute",top:a-125+"px"}):t.css({position:"absolute",top:a-e+"px"}):t.css({position:"fixed",top:"50%"}),i=o}),$(window).scroll()},_share:function(t){var e=$(t),i=e.find(".article__code"),o=i.data("url"),a=i.data("avatar"),s=encodeURIComponent(i.data("title")+" - "+i.data("blogtitle")),n=encodeURIComponent(o),c={};c.tencent="http://share.v.t.qq.com/index.php?c=share&a=index&title="+s+"&url="+n+"&pic="+a,c.weibo="http://v.t.sina.com.cn/share/share.php?title="+s+"&url="+n+"&pic="+a,c.google="https://plus.google.com/share?url="+n,c.twitter="https://twitter.com/intent/tweet?status="+s+" "+n,e.find("span").click(function(){var t=$(this).data("type");if(t)return"wechat"===t?(0===i.find("canvas").length?i.qrcode({width:128,height:128,text:o}):i.slideToggle(),!1):void window.open(c[t],"_blank","top=100,left=200,width=648,height=618")})}};Skin.init();
\ No newline at end of file
diff --git a/skins/Medium/js/jquery.qrcode.js b/skins/Medium/js/jquery.qrcode.js
index f6a3275..e40f901 100644
--- a/skins/Medium/js/jquery.qrcode.js
+++ b/skins/Medium/js/jquery.qrcode.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 (function(r){r.fn.qrcode=function(h){var s;function u(a){this.mode=s;this.data=a}function o(a,c){this.typeNumber=a;this.errorCorrectLevel=c;this.modules=null;this.moduleCount=0;this.dataCache=null;this.dataList=[]}function q(a,c){if(void 0==a.length)throw Error(a.length+"/"+c);for(var d=0;d<a.length&&0==a[d];)d++;this.num=Array(a.length-d+c);for(var b=0;b<a.length-d;b++)this.num[b]=a[b+d]}function p(a,c){this.totalCount=a;this.dataCount=c}function t(){this.buffer=[];this.length=0}u.prototype={getLength:function(){return this.data.length},
 write:function(a){for(var c=0;c<this.data.length;c++)a.put(this.data.charCodeAt(c),8)}};o.prototype={addData:function(a){this.dataList.push(new u(a));this.dataCache=null},isDark:function(a,c){if(0>a||this.moduleCount<=a||0>c||this.moduleCount<=c)throw Error(a+","+c);return this.modules[a][c]},getModuleCount:function(){return this.moduleCount},make:function(){if(1>this.typeNumber){for(var a=1,a=1;40>a;a++){for(var c=p.getRSBlocks(a,this.errorCorrectLevel),d=new t,b=0,e=0;e<c.length;e++)b+=c[e].dataCount;
diff --git a/skins/Medium/js/jquery.qrcode.min.js b/skins/Medium/js/jquery.qrcode.min.js
index a8f6a37..8f32bbb 100644
--- a/skins/Medium/js/jquery.qrcode.min.js
+++ b/skins/Medium/js/jquery.qrcode.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 !function(t){t.fn.qrcode=function(e){function r(t){this.mode=u,this.data=t}function o(t,e){this.typeNumber=t,this.errorCorrectLevel=e,this.modules=null,this.moduleCount=0,this.dataCache=null,this.dataList=[]}function n(t,e){if(void 0==t.length)throw Error(t.length+"/"+e);for(var r=0;r<t.length&&0==t[r];)r++;this.num=Array(t.length-r+e);for(var o=0;o<t.length-r;o++)this.num[o]=t[o+r]}function i(t,e){this.totalCount=t,this.dataCount=e}function s(){this.buffer=[],this.length=0}var u;r.prototype={getLength:function(){return this.data.length},write:function(t){for(var e=0;e<this.data.length;e++)t.put(this.data.charCodeAt(e),8)}},o.prototype={addData:function(t){this.dataList.push(new r(t)),this.dataCache=null},isDark:function(t,e){if(0>t||this.moduleCount<=t||0>e||this.moduleCount<=e)throw Error(t+","+e);return this.modules[t][e]},getModuleCount:function(){return this.moduleCount},make:function(){if(1>this.typeNumber){for(var t=1,t=1;40>t;t++){for(var e=i.getRSBlocks(t,this.errorCorrectLevel),r=new s,o=0,n=0;n<e.length;n++)o+=e[n].dataCount;for(n=0;n<this.dataList.length;n++)e=this.dataList[n],r.put(e.mode,4),r.put(e.getLength(),a.getLengthInBits(e.mode,t)),e.write(r);if(r.getLengthInBits()<=8*o)break}this.typeNumber=t}this.makeImpl(!1,this.getBestMaskPattern())},makeImpl:function(t,e){this.moduleCount=4*this.typeNumber+17,this.modules=Array(this.moduleCount);for(var r=0;r<this.moduleCount;r++){this.modules[r]=Array(this.moduleCount);for(var n=0;n<this.moduleCount;n++)this.modules[r][n]=null}this.setupPositionProbePattern(0,0),this.setupPositionProbePattern(this.moduleCount-7,0),this.setupPositionProbePattern(0,this.moduleCount-7),this.setupPositionAdjustPattern(),this.setupTimingPattern(),this.setupTypeInfo(t,e),7<=this.typeNumber&&this.setupTypeNumber(t),null==this.dataCache&&(this.dataCache=o.createData(this.typeNumber,this.errorCorrectLevel,this.dataList)),this.mapData(this.dataCache,e)},setupPositionProbePattern:function(t,e){for(var r=-1;7>=r;r++)if(!(-1>=t+r||this.moduleCount<=t+r))for(var o=-1;7>=o;o++)-1>=e+o||this.moduleCount<=e+o||(this.modules[t+r][e+o]=0<=r&&6>=r&&(0==o||6==o)||0<=o&&6>=o&&(0==r||6==r)||2<=r&&4>=r&&2<=o&&4>=o)},getBestMaskPattern:function(){for(var t=0,e=0,r=0;8>r;r++){this.makeImpl(!0,r);var o=a.getLostPoint(this);(0==r||t>o)&&(t=o,e=r)}return e},createMovieClip:function(t,e,r){for(t=t.createEmptyMovieClip(e,r),this.make(),e=0;e<this.modules.length;e++)for(var r=1*e,o=0;o<this.modules[e].length;o++){var n=1*o;this.modules[e][o]&&(t.beginFill(0,100),t.moveTo(n,r),t.lineTo(n+1,r),t.lineTo(n+1,r+1),t.lineTo(n,r+1),t.endFill())}return t},setupTimingPattern:function(){for(var t=8;t<this.moduleCount-8;t++)null==this.modules[t][6]&&(this.modules[t][6]=0==t%2);for(t=8;t<this.moduleCount-8;t++)null==this.modules[6][t]&&(this.modules[6][t]=0==t%2)},setupPositionAdjustPattern:function(){for(var t=a.getPatternPosition(this.typeNumber),e=0;e<t.length;e++)for(var r=0;r<t.length;r++){var o=t[e],n=t[r];if(null==this.modules[o][n])for(var i=-2;2>=i;i++)for(var s=-2;2>=s;s++)this.modules[o+i][n+s]=-2==i||2==i||-2==s||2==s||0==i&&0==s}},setupTypeNumber:function(t){for(var e=a.getBCHTypeNumber(this.typeNumber),r=0;18>r;r++){var o=!t&&1==(e>>r&1);this.modules[Math.floor(r/3)][r%3+this.moduleCount-8-3]=o}for(r=0;18>r;r++)o=!t&&1==(e>>r&1),this.modules[r%3+this.moduleCount-8-3][Math.floor(r/3)]=o},setupTypeInfo:function(t,e){for(var r=a.getBCHTypeInfo(this.errorCorrectLevel<<3|e),o=0;15>o;o++){var n=!t&&1==(r>>o&1);6>o?this.modules[o][8]=n:8>o?this.modules[o+1][8]=n:this.modules[this.moduleCount-15+o][8]=n}for(o=0;15>o;o++)n=!t&&1==(r>>o&1),8>o?this.modules[8][this.moduleCount-o-1]=n:9>o?this.modules[8][15-o-1+1]=n:this.modules[8][15-o-1]=n;this.modules[this.moduleCount-8][8]=!t},mapData:function(t,e){for(var r=-1,o=this.moduleCount-1,n=7,i=0,s=this.moduleCount-1;0<s;s-=2)for(6==s&&s--;;){for(var u=0;2>u;u++)if(null==this.modules[o][s-u]){var h=!1;i<t.length&&(h=1==(t[i]>>>n&1)),a.getMask(e,o,s-u)&&(h=!h),this.modules[o][s-u]=h,n--,-1==n&&(i++,n=7)}if(0>(o+=r)||this.moduleCount<=o){o-=r,r=-r;break}}}},o.PAD0=236,o.PAD1=17,o.createData=function(t,e,r){for(var e=i.getRSBlocks(t,e),n=new s,u=0;u<r.length;u++){var h=r[u];n.put(h.mode,4),n.put(h.getLength(),a.getLengthInBits(h.mode,t)),h.write(n)}for(u=t=0;u<e.length;u++)t+=e[u].dataCount;if(n.getLengthInBits()>8*t)throw Error("code length overflow. 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Error("mode:"+t)}}},getLostPoint:function(t){for(var e=t.getModuleCount(),r=0,o=0;o<e;o++)for(var n=0;n<e;n++){for(var i=0,s=t.isDark(o,n),u=-1;1>=u;u++)if(!(0>o+u||e<=o+u))for(var a=-1;1>=a;a++)0>n+a||e<=n+a||0==u&&0==a||s==t.isDark(o+u,n+a)&&i++;5<i&&(r+=3+i-5)}for(o=0;o<e-1;o++)for(n=0;n<e-1;n++)i=0,t.isDark(o,n)&&i++,t.isDark(o+1,n)&&i++,t.isDark(o,n+1)&&i++,t.isDark(o+1,n+1)&&i++,(0==i||4==i)&&(r+=3);for(o=0;o<e;o++)for(n=0;n<e-6;n++)t.isDark(o,n)&&!t.isDark(o,n+1)&&t.isDark(o,n+2)&&t.isDark(o,n+3)&&t.isDark(o,n+4)&&!t.isDark(o,n+5)&&t.isDark(o,n+6)&&(r+=40);for(n=0;n<e;n++)for(o=0;o<e-6;o++)t.isDark(o,n)&&!t.isDark(o+1,n)&&t.isDark(o+2,n)&&t.isDark(o+3,n)&&t.isDark(o+4,n)&&!t.isDark(o+5,n)&&t.isDark(o+6,n)&&(r+=40);for(n=i=0;n<e;n++)for(o=0;o<e;o++)t.isDark(o,n)&&i++;return t=Math.abs(100*i/e/e-50)/5,r+10*t}},h={glog:function(t){if(1>t)throw Error("glog("+t+")");return h.LOG_TABLE[t]},gexp:function(t){for(;0>t;)t+=255;for(;256<=t;)t-=255;return h.EXP_TABLE[t]},EXP_TABLE:Array(256),LOG_TABLE:Array(256)},l=0;8>l;l++)h.EXP_TABLE[l]=1<<l;for(l=8;256>l;l++)h.EXP_TABLE[l]=h.EXP_TABLE[l-4]^h.EXP_TABLE[l-5]^h.EXP_TABLE[l-6]^h.EXP_TABLE[l-8];for(l=0;255>l;l++)h.LOG_TABLE[h.EXP_TABLE[l]]=l;return n.prototype={get:function(t){return this.num[t]},getLength:function(){return this.num.length},multiply:function(t){for(var e=Array(this.getLength()+t.getLength()-1),r=0;r<this.getLength();r++)for(var o=0;o<t.getLength();o++)e[r+o]^=h.gexp(h.glog(this.get(r))+h.glog(t.get(o)));return new n(e,0)},mod:function(t){if(0>this.getLength()-t.getLength())return this;for(var e=h.glog(this.get(0))-h.glog(t.get(0)),r=Array(this.getLength()),o=0;o<this.getLength();o++)r[o]=this.get(o);for(o=0;o<t.getLength();o++)r[o]^=h.gexp(h.glog(t.get(o))+e);return new n(r,0).mod(t)}},i.RS_BLOCK_TABLE=[[1,26,19],[1,26,16],[1,26,13],[1,26,9],[1,44,34],[1,44,28],[1,44,22],[1,44,16],[1,70,55],[1,70,44],[2,35,17],[2,35,13],[1,100,80],[2,50,32],[2,50,24],[4,25,9],[1,134,108],[2,67,43],[2,33,15,2,34,16],[2,33,11,2,34,12],[2,86,68],[4,43,27],[4,43,19],[4,43,15],[2,98,78],[4,49,31],[2,32,14,4,33,15],[4,39,13,1,40,14],[2,121,97],[2,60,38,2,61,39],[4,40,18,2,41,19],[4,40,14,2,41,15],[2,146,116],[3,58,36,2,59,37],[4,36,16,4,37,17],[4,36,12,4,37,13],[2,86,68,2,87,69],[4,69,43,1,70,44],[6,43,19,2,44,20],[6,43,15,2,44,16],[4,101,81],[1,80,50,4,81,51],[4,50,22,4,51,23],[3,36,12,8,37,13],[2,116,92,2,117,93],[6,58,36,2,59,37],[4,46,20,6,47,21],[7,42,14,4,43,15],[4,133,107],[8,59,37,1,60,38],[8,44,20,4,45,21],[12,33,11,4,34,12],[3,145,115,1,146,116],[4,64,40,5,65,41],[11,36,16,5,37,17],[11,36,12,5,37,13],[5,109,87,1,110,88],[5,65,41,5,66,42],[5,54,24,7,55,25],[11,36,12],[5,122,98,1,123,99],[7,73,45,3,74,46],[15,43,19,2,44,20],[3,45,15,13,46,16],[1,135,107,5,136,108],[10,74,46,1,75,47],[1,50,22,15,51,23],[2,42,14,17,43,15],[5,150,120,1,151,121],[9,69,43,4,70,44],[17,50,22,1,51,23],[2,42,14,19,43,15],[3,141,113,4,142,114],[3,70,44,11,71,45],[17,47,21,4,48,22],[9,39,13,16,40,14],[3,135,107,5,136,108],[3,67,41,13,68,42],[15,54,24,5,55,25],[15,43,15,10,44,16],[4,144,116,4,145,117],[17,68,42],[17,50,22,6,51,23],[19,46,16,6,47,17],[2,139,111,7,140,112],[17,74,46],[7,54,24,16,55,25],[34,37,13],[4,151,121,5,152,122],[4,75,47,14,76,48],[11,54,24,14,55,25],[16,45,15,14,46,16],[6,147,117,4,148,118],[6,73,45,14,74,46],[11,54,24,16,55,25],[30,46,16,2,47,17],[8,132,106,4,133,107],[8,75,47,13,76,48],[7,54,24,22,55,25],[22,45,15,13,46,16],[10,142,114,2,143,115],[19,74,46,4,75,47],[28,50,22,6,51,23],[33,46,16,4,47,17],[8,152,122,4,153,123],[22,73,45,3,74,46],[8,53,23,26,54,24],[12,45,15,28,46,16],[3,147,117,10,148,118],[3,73,45,23,74,46],[4,54,24,31,55,25],[11,45,15,31,46,16],[7,146,116,7,147,117],[21,73,45,7,74,46],[1,53,23,37,54,24],[19,45,15,26,46,16],[5,145,115,10,146,116],[19,75,47,10,76,48],[15,54,24,25,55,25],[23,45,15,25,46,16],[13,145,115,3,146,116],[2,74,46,29,75,47],[42,54,24,1,55,25],[23,45,15,28,46,16],[17,145,115],[10,74,46,23,75,47],[10,54,24,35,55,25],[19,45,15,35,46,16],[17,145,115,1,146,116],[14,74,46,21,75,47],[29,54,24,19,55,25],[11,45,15,46,46,16],[13,145,115,6,146,116],[14,74,46,23,75,47],[44,54,24,7,55,25],[59,46,16,1,47,17],[12,151,121,7,152,122],[12,75,47,26,76,48],[39,54,24,14,55,25],[22,45,15,41,46,16],[6,151,121,14,152,122],[6,75,47,34,76,48],[46,54,24,10,55,25],[2,45,15,64,46,16],[17,152,122,4,153,123],[29,74,46,14,75,47],[49,54,24,10,55,25],[24,45,15,46,46,16],[4,152,122,18,153,123],[13,74,46,32,75,47],[48,54,24,14,55,25],[42,45,15,32,46,16],[20,147,117,4,148,118],[40,75,47,7,76,48],[43,54,24,22,55,25],[10,45,15,67,46,16],[19,148,118,6,149,119],[18,75,47,31,76,48],[34,54,24,34,55,25],[20,45,15,61,46,16]],i.getRSBlocks=function(t,e){var r=i.getRsBlockTable(t,e);if(void 0==r)throw Error("bad rs block @ typeNumber:"+t+"/errorCorrectLevel:"+e);for(var o=r.length/3,n=[],s=0;s<o;s++)for(var u=r[3*s+0],a=r[3*s+1],h=r[3*s+2],l=0;l<u;l++)n.push(new i(a,h));return n},i.getRsBlockTable=function(t,e){switch(e){case 1:return i.RS_BLOCK_TABLE[4*(t-1)+0];case 0:return i.RS_BLOCK_TABLE[4*(t-1)+1];case 3:return i.RS_BLOCK_TABLE[4*(t-1)+2];case 2:return i.RS_BLOCK_TABLE[4*(t-1)+3]}},s.prototype={get:function(t){return 1==(this.buffer[Math.floor(t/8)]>>>7-t%8&1)},put:function(t,e){for(var r=0;r<e;r++)this.putBit(1==(t>>>e-r-1&1))},getLengthInBits:function(){return this.length},putBit:function(t){var e=Math.floor(this.length/8);this.buffer.length<=e&&this.buffer.push(0),t&&(this.buffer[e]|=128>>>this.length%8),this.length++}},"string"==typeof e&&(e={text:e}),e=t.extend({},{render:"canvas",width:256,height:256,typeNumber:-1,correctLevel:2,background:"#ffffff",foreground:"#000000"},e),this.each(function(){var r;if("canvas"==e.render){r=new o(e.typeNumber,e.correctLevel),r.addData(e.text),r.make();var n=document.createElement("canvas");n.width=e.width,n.height=e.height;for(var i=n.getContext("2d"),s=e.width/r.getModuleCount(),u=e.height/r.getModuleCount(),a=0;a<r.getModuleCount();a++)for(var h=0;h<r.getModuleCount();h++){i.fillStyle=r.isDark(a,h)?e.foreground:e.background;var l=Math.ceil((h+1)*s)-Math.floor(h*s),g=Math.ceil((a+1)*s)-Math.floor(a*s);i.fillRect(Math.round(h*s),Math.round(a*u),l,g)}}else for(r=new o(e.typeNumber,e.correctLevel),r.addData(e.text),r.make(),n=t("<table></table>").css("width",e.width+"px").css("height",e.height+"px").css("border","0px").css("border-collapse","collapse").css("background-color",e.background),i=e.width/r.getModuleCount(),s=e.height/r.getModuleCount(),u=0;u<r.getModuleCount();u++)for(a=t("<tr></tr>").css("height",s+"px").appendTo(n),h=0;h<r.getModuleCount();h++)t("<td></td>").css("width",i+"px").css("background-color",r.isDark(u,h)?e.foreground:e.background).appendTo(a);r=n,jQuery(r).appendTo(this)})}}(jQuery);
\ No newline at end of file
diff --git a/skins/Medium/lang/lang_en_US.properties b/skins/Medium/lang/lang_en_US.properties
index 997740d..0bc0433 100644
--- a/skins/Medium/lang/lang_en_US.properties
+++ b/skins/Medium/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Medium/lang/lang_zh_CN.properties b/skins/Medium/lang/lang_zh_CN.properties
index 7e4d8c1..75aab14 100644
--- a/skins/Medium/lang/lang_zh_CN.properties
+++ b/skins/Medium/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Medium/links.ftl b/skins/Medium/links.ftl
index c8d4732..6b98bc0 100644
--- a/skins/Medium/links.ftl
+++ b/skins/Medium/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/macro-comments.ftl b/skins/Medium/macro-comments.ftl
index b1aa9c1..4e9597e 100644
--- a/skins/Medium/macro-comments.ftl
+++ b/skins/Medium/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="article__comment">
     <div class="comment__title">${commentLabel}</div>
diff --git a/skins/Medium/macro-head.ftl b/skins/Medium/macro-head.ftl
index 4bd0808..6194b3a 100644
--- a/skins/Medium/macro-head.ftl
+++ b/skins/Medium/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/Medium/nav.ftl b/skins/Medium/nav.ftl
index f1edaaf..4f6db0c 100644
--- a/skins/Medium/nav.ftl
+++ b/skins/Medium/nav.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <nav id="headerNav" class="header__nav">
     <div class="wrapper">
         <a href="${servePath}">
diff --git a/skins/Medium/page.ftl b/skins/Medium/page.ftl
index a2cefd9..a6e17ac 100644
--- a/skins/Medium/page.ftl
+++ b/skins/Medium/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/Medium/skin.properties b/skins/Medium/skin.properties
index f287963..954bb8b 100644
--- a/skins/Medium/skin.properties
+++ b/skins/Medium/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/Medium/tag-articles.ftl b/skins/Medium/tag-articles.ftl
index b92994a..cb3bef2 100644
--- a/skins/Medium/tag-articles.ftl
+++ b/skins/Medium/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/Medium/tags.ftl b/skins/Medium/tags.ftl
index 0b90f89..98eb5b4 100644
--- a/skins/Medium/tags.ftl
+++ b/skins/Medium/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/archive-articles.ftl b/skins/NeoEase/archive-articles.ftl
index cb44541..20fa850 100644
--- a/skins/NeoEase/archive-articles.ftl
+++ b/skins/NeoEase/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/article-list.ftl b/skins/NeoEase/article-list.ftl
index f781af0..24efeb3 100644
--- a/skins/NeoEase/article-list.ftl
+++ b/skins/NeoEase/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="article">
     <h2>
diff --git a/skins/NeoEase/article.ftl b/skins/NeoEase/article.ftl
index 0aa8fb9..9d03618 100644
--- a/skins/NeoEase/article.ftl
+++ b/skins/NeoEase/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/NeoEase/author-articles.ftl b/skins/NeoEase/author-articles.ftl
index 02c1a1f..3fc9248 100644
--- a/skins/NeoEase/author-articles.ftl
+++ b/skins/NeoEase/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/category-articles.ftl b/skins/NeoEase/category-articles.ftl
index e53558d..e928f87 100644
--- a/skins/NeoEase/category-articles.ftl
+++ b/skins/NeoEase/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/common-comment.ftl b/skins/NeoEase/common-comment.ftl
index 4e61253..230b273 100644
--- a/skins/NeoEase/common-comment.ftl
+++ b/skins/NeoEase/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}">
     <img class="comment-header" title="${comment.commentName}"
          alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
diff --git a/skins/NeoEase/css/NeoEase.css b/skins/NeoEase/css/NeoEase.css
index c33ce04..7de725f 100644
--- a/skins/NeoEase/css/NeoEase.css
+++ b/skins/NeoEase/css/NeoEase.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 ﻿/**
  * skin neoease style
  *
diff --git a/skins/NeoEase/css/NeoEase.min.css b/skins/NeoEase/css/NeoEase.min.css
index 0b17350..1d438a2 100644
--- a/skins/NeoEase/css/NeoEase.min.css
+++ b/skins/NeoEase/css/NeoEase.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 a:active,body{color:#333}.nav ul,.side ul{list-style:none}.recent-comments-content,.side .side-li li{text-overflow:ellipsis;-o-text-overflow:ellipsis;overflow:hidden}.article-body,.clear,.main,.side,.side .side-li li{overflow:hidden}#goTop,.form img,.translate-ico{cursor:pointer}a:link,input,textarea{outline:0}#tagsSide li a,.form th,.side .side-li a{white-space:nowrap}body,div,h1,h2,h3,h4,h5,h6,html,li,ul{margin:0;padding:0}::selection{background-color:#ccc;color:#fff}::-moz-selection{background-color:#ccc;color:#fff}body{font-family:"Lucida Grande",Verdana,"\5fae\8f6f\96c5\9ed1";font-size:12px;background-color:#F9F9F9}a:link{color:#21759B;text-decoration:none}a:visited{color:#555777}a:hover{color:#D54E21}img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic}.left{float:left}.right{float:right}.clear{background-color:transparent;border:0;clear:both;display:block;font-size:0;height:0;line-height:0}.em-br,.em-span{line-height:24px}.none{display:none}.logo{padding:0 5px;text-shadow:0 0 1px #EEE}.tip{color:#D54E21;font-size:11px}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px}.collapse-ico,.date-ico,.expand-ico,.tag-ico,.translate-ico,.user-ico{background-repeat:no-repeat;height:16px}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 0}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.em-span{float:left}#search,.collapse-ico,.date-ico,.expand-ico,.feed-ico,.tag-ico,.translate-ico,.user-ico{background-image:url(../images/icons.png)}.feed-ico{background-position:right -146px;background-repeat:no-repeat;color:#333;padding-right:24px}.translate-ico{background-position:1px -125px;border:1px solid #999;border-radius:3px;float:right;margin:6px 0 0 18px;padding:1px;width:16px}.translate-ico:hover{border-color:#D54E21;box-shadow:0 0 1px #999;background-color:#F2F2F2}.collapse-ico,.expand-ico{background-position:54px -84px;cursor:pointer}.collapse-ico{background-position:54px -69px}.date-ico,.tag-ico,.user-ico{display:block;padding-left:20px}.tag-ico{margin:6px 6px 0 0}.date-ico{float:left;background-position:0 -16px}.user-ico{background-position:0 -32px;float:left;margin-left:12px}.wrapper{margin:0 auto;width:960px}.body{border-top:2px solid #DDD}.main{float:left;margin:16px 0 50px;width:667px}.header{background:url(../images/icons.png) 0 -220px repeat-x #F2F2F2;padding:20px 0}.header .title{border-bottom:1px solid #242424;color:#000;font-size:26px;font-weight:400}.header .sub-title{color:#242424;font-size:11px}#search,.nav a{font-size:14px}.nav .page-icon{float:left;height:14px;width:14px;margin:8px 3px 0 0}#search{background-position:7px -99px;background-repeat:no-repeat;background-color:#FFF;border:1px solid #DDD;border-radius:2px;box-shadow:0 1px 1px rgba(0,0,0,.1) inset;color:#888;float:right;height:20px;line-height:145%;padding:3px 10px 3px 28px;width:24px;-moz-transition:width .4s ease,background .4s ease;-webkit-transition:width .4s ease,background .4s ease;transition:width .4s ease,background .4s ease}.nav a,.nav li,.nav ul{float:left}#search:focus{background-color:#F9F9F9;width:196px}.nav{background-color:#E9E9E9;border-bottom:1px solid #CCC}.nav a{color:#666;display:block;height:30px;line-height:30px;padding:0 15px;text-shadow:0 1px 0 #EEE}#goTop,.footer{font-size:11px}.nav a:hover{color:#D54E21;background-color:#DDD}.nav .current{background-color:#DDD;margin:-1px 0;padding-right:2px}.nav .current a{background-color:#F9F9F9;border-color:#CCC #CCC #F9F9F9;border-style:solid;border-width:1px 1px 3px;font-weight:700;height:33px;line-height:33px;margin:-2px 0 -3px;color:#333;text-shadow:1px 1px 1px #C6D9E9}.nav img{margin-left:3px}.nav .right{line-height:29px}.footer{background-color:#E9E9E9;border-top:3px solid #DDD;color:#999;padding:12px 0}.footer a{color:#787878}.footer a:hover{color:#D54E21}#goTop{background:url(../images/icons.png) 5px -51px no-repeat #DDD;border-radius:2px 2px 0 0;height:21px;line-height:21px;padding:0 10px 0 23px;position:absolute;right:56px;display:none}#goTop:hover{background-color:#EAEAEA}.side{float:right;width:278px;margin-bottom:50px}.side>div{border-bottom:1px solid #DEDEDE;padding:10px 5px 15px}.side h4{font-size:14px;line-height:32px}#archiveSide{list-style:square;margin-left:18px}#archiveSide .archive-year{color:#D54E21;font-weight:700;height:18px;line-height:18px;list-style:none}.side a{line-height:18px;color:#21759B}.side a:hover{text-decoration:underline}.article-element a,.pagination a,.recent-comments-content a:hover{text-decoration:none}.side sup{color:#333}.side .side-li li{width:268px}.recent-comments li>img{background-color:#FFF;border:1px solid #999;padding:1px;width:32px;height:32px;margin-top:1px}.recent-comments-main{float:left;margin:0 0 9px 3px;width:229px}.recent-comments-main .collapse-ico,.recent-comments-main .expand-ico{background-position:0 -86px;float:right;width:16px;-moz-transition:opacity .4s ease;-webkit-transition:opacity .4s ease;transition:opacity .4s ease;opacity:0;filter:alpha(opacity=0)}.recent-comments li:hover .collapse-ico,.recent-comments li:hover .expand-ico{opacity:1;filter:alpha(opacity=100)}.recent-comments-main .collapse-ico{background-position:0 -70px}.recent-comments-content{height:18px}.recent-comments-content img{width:16px}.recent-comments-content a{color:#555777}.recent-comments-content p{margin:0}.article{border-bottom:1px solid #CCC;padding:0 5px 10px;margin-top:20px}.article-element{font-size:11px;line-height:16px;margin:12px 0}.article-element a{border-bottom:1px solid #DFDFDF;color:#555;padding-bottom:1px}.article-element a:hover{color:#D54E21;border-bottom-color:#D54E21}.article-title{color:#21759B;font-size:20px;font-weight:400}.article-title:hover{color:#D54E21}.article .collapse-ico,.article .expand-ico{float:right;margin-top:9px;padding-right:6px;width:15px;background-position:0 -86px}.article .collapse-ico{background-position:0 -70px}.article-body{line-height:145%;word-wrap:break-word}.article-body h1{font-size:2em;margin:.67em 0}.article-body h2{font-size:1.5em;margin:.75em 0}.article-body h3{font-size:1.17em;margin:.83em 0}.article-body h4{font-size:.83em;margin:1.5em 0}.article-body h6{font-size:.75em;margin:1.67em 0}.article-body ol,.article-body ul{margin-left:40px}.article-body a{border-bottom:1px solid #DFDFDF}.article-body a:hover{color:#D54E21;border-bottom:1px solid #D54E21}.article-body p{line-height:18px}.pagination{margin-top:30px;line-height:21px}.pagination a{border:1px solid #C5C3C2;font-size:10px;margin:2px;padding:1px 5px;background-color:#F2F2F2}.pagination a.current{background-color:#FFF;font-weight:700;padding:2px 6px;color:#000}.pagination a:hover{background-color:#F3DEDD;color:#D54E21;border:1px solid #D54E21}#comments>div,.share{border-bottom:1px solid #DEDEDE}.page{margin-top:20px;padding:0 5px 5px}.article-panel1{background-color:#F2F2F2;padding:5px 10px}.article-panel2{background-color:#FFF;margin-top:12px;padding:5px 10px}.article-panel2 ul{line-height:18px;list-style:square;margin-left:18px}.share{margin-top:15px}.share-comment{background-color:#DDD;border-radius:2px 2px 0 0;float:right;font-size:11px;height:21px;line-height:21px;margin-right:16px;padding:0 10px}.share-comment:hover{background-color:#EAEAEA}#comments{position:relative}#comments>div{padding:10px;width:647px;background-color:#F5F5F5}#comments>div:nth-child(2n){background-color:#F8F8F8}#comments .comment-panel>.right{-moz-transition:opacity .4s ease;-webkit-transition:opacity .4s ease;transition:opacity .4s ease;opacity:0;filter:alpha(opacity=0)}#comments>div:hover .comment-panel>.right{opacity:1;filter:alpha(opacity=100)}.comment-header{height:50px;width:50px;float:left;background-color:#FFF;border:1px solid #DEDEDE;padding:1px}.comment-panel{float:left;margin:0 10px;width:573px;line-height:16px}.comment-panel .article-body{margin-top:5px}#comments .comment-body-ref{border-bottom:0;background-color:#FFF;border-radius:5px;left:73px;position:absolute;box-shadow:1px 0 3px #DEDEDE;width:560px}.comment-body-ref .comment-panel{width:486px}.comment-body-ref .arrow{border-color:#F5F5F5 #FFF #F5F5F5 #F5F5F5;border-style:solid;border-width:6px 8px 10px 0;display:block;left:-8px;position:absolute;top:5px}.form{margin:10px}.form h4{margin:10px 0 5px 5px}.form th{text-align:right}.form input[type=text],.form input[type=password],.form textarea{border-color:silver #D9D9D9 #D9D9D9;border-style:solid;border-width:1px;font-family:"Lucida Grande",Verdana,'微软雅黑';font-size:12px;outline:0;padding:0 3px}.form input:focus,.form textarea:focus{box-shadow:0 1px 2px rgba(0,0,0,.3) inset}.form textarea{overflow:auto;resize:vertical;padding:3px;width:634px}.form input{height:24px;line-height:16px;width:260px}.form button{background-color:#B4D666;border-color:#B4D666 #81B840 #81B840 #B4D666;border-style:solid;border-width:1px;color:#2970A6;height:28px;line-height:28px;padding:0 12px}.form button:hover{background-color:#98C64C;border-color:#76B33A #98C64C #98C64C #76B33A;color:#074A7E}#tags li{float:left;list-style:none;height:38px}#tags a:hover{text-shadow:0 0 2px}#tags a{border-radius:3px;box-shadow:1px 1px 3px #333;float:left;margin:3px 6px;padding:3px 12px}#tagsSide li a{float:left;line-height:145%;margin-right:7px}.tags1{font-size:12px;color:#A1A1A1}.tags2{font-size:14px;color:#687F95}.tags3{font-size:16px;color:#4C6E90}.tags4{font-size:18px;color:#258}.tags5{font-size:20px}#tagsSide .tags2{font-size:14px}#tagsSide .tags3{font-size:16px}#tagsSide .tags4{font-size:18px}#tagsSide .tags5{font-size:20px}.main>h2{margin-top:16px}.error{background-image:url(../images/404.png);float:left;height:536px;margin:50px 80px;position:relative;width:363px}.error h2{left:-68px;position:absolute;top:-20px}.error a{background-color:#9CD941;border:265px;bottom:12px;color:#333555;float:left;padding:10px 15px;position:absolute;right:-106px}.error a:hover{background-color:#ADEb51}
\ No newline at end of file
diff --git a/skins/NeoEase/footer.ftl b/skins/NeoEase/footer.ftl
index ae08452..39b31d1 100644
--- a/skins/NeoEase/footer.ftl
+++ b/skins/NeoEase/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer">
     <div class="wrapper">
         <div class="left">
diff --git a/skins/NeoEase/header.ftl b/skins/NeoEase/header.ftl
index f76da42..13cd2bd 100644
--- a/skins/NeoEase/header.ftl
+++ b/skins/NeoEase/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header">
     <div class="wrapper">
         <div class="left">
diff --git a/skins/NeoEase/index.ftl b/skins/NeoEase/index.ftl
index 6c7edba..ef21366 100644
--- a/skins/NeoEase/index.ftl
+++ b/skins/NeoEase/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/js/NeoEase.js b/skins/NeoEase/js/NeoEase.js
index 02eb9f2..19a663b 100644
--- a/skins/NeoEase/js/NeoEase.js
+++ b/skins/NeoEase/js/NeoEase.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
 * @fileoverview neoease js.
diff --git a/skins/NeoEase/js/NeoEase.min.js b/skins/NeoEase/js/NeoEase.min.js
index 4ffc01d..a8b7583 100644
--- a/skins/NeoEase/js/NeoEase.min.js
+++ b/skins/NeoEase/js/NeoEase.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var goTop=function(e){e=e||.1;var a=$(window).scrollTop(),t=1+e;if(window.scrollTo(0,Math.floor(a/t)),a>0){var n="goTop("+e+")";window.setTimeout(n,16)}},collapseArchive=function(e,a){var t=!0;"collapse-ico"===e.className?(e.className="expand-ico",t=!1):e.className="collapse-ico",$("#archiveSide li").each(function(){$(this).data("year")===a&&(t?$(this).show():$(this).hide())})},getArticle=function(e,a){var t=$("#abstract"+a),n=$("#content"+a);return""===n.html()?$.ajax({url:"/get-article-content?id="+a,type:"GET",dataType:"html",beforeSend:function(){t.css("background","url(/skins/neoease/images/ajax-loader.gif) no-repeat scroll center center transparent")},success:function(a,i){e.className="collapse-ico",n.html(a),t.hide().css("background","none"),n.fadeIn("slow")}}):"expand-ico"===e.className?(t.hide(),n.fadeIn(),e.className="collapse-ico"):(n.hide(),t.fadeIn(),e.className="expand-ico"),!1},goTranslate=function(){window.open("http://translate.google.com/translate?sl=auto&tl=auto&u="+location.href)};!function(){$(window).scroll(function(){var e=$(window).scrollTop();if(e>182){var a=$(window).height(),t=e+a-21;$("body").height()-58<=e+a&&(t=$(".footer").offset().top-21),$("#goTop").fadeIn("slow").css("top",t)}else $("#goTop").hide()});var e=(new Date).getFullYear(),a=e;$("#archiveSide li").each(function(t){var n=$(this);n.data("year")!==e&&$(this).hide(),a!==n.data("year")&&(a=n.data("year"),n.before("<li class='archive-year'><div onclick='collapseArchive(this, "+a+")' class='expand-ico'>"+a+"&nbsp;年</div></li>"))}),$(".recent-comments .expand-ico").click(function(){"expand-ico"===this.className?($(this).parent().next().css({height:"auto","white-space":"normal"}),this.className="collapse-ico"):($(this).parent().next().animate({height:"18px"},function(){$(this).css("white-space","nowrap")}),this.className="expand-ico")}),$(".nav ul li").each(function(){$(this).find("a").attr("href")===latkeConfig.servePath+location.pathname?$(this).addClass("current"):/\/[0-9]+$/.test(location.pathname)&&($(".nav ul li")[0].className="current")}),Util.init(),Util.replaceSideEm($(".recent-comments-content")),Util.buildTags("tagsSide"),$(".recent-comments .recent-comments-main").each(function(){$(this).find(".recent-comments-content>a").height()<30?$(this).find(".expand-ico").remove():$(this).find(".expand-ico").parent().next().css({"white-space":"nowrap"})})}();
\ No newline at end of file
diff --git a/skins/NeoEase/lang/lang_en_US.properties b/skins/NeoEase/lang/lang_en_US.properties
index 2581cc4..dff029d 100644
--- a/skins/NeoEase/lang/lang_en_US.properties
+++ b/skins/NeoEase/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/NeoEase/lang/lang_zh_CN.properties b/skins/NeoEase/lang/lang_zh_CN.properties
index c51a185..798f8b5 100644
--- a/skins/NeoEase/lang/lang_zh_CN.properties
+++ b/skins/NeoEase/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/NeoEase/macro-comments.ftl b/skins/NeoEase/macro-comments.ftl
index d66ff1b..845e437 100644
--- a/skins/NeoEase/macro-comments.ftl
+++ b/skins/NeoEase/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="share">
     <a class="share-comment" href="#commentForm">
diff --git a/skins/NeoEase/macro-head.ftl b/skins/NeoEase/macro-head.ftl
index d774250..6256cbf 100644
--- a/skins/NeoEase/macro-head.ftl
+++ b/skins/NeoEase/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/NeoEase/page.ftl b/skins/NeoEase/page.ftl
index c90865b..2da30e0 100644
--- a/skins/NeoEase/page.ftl
+++ b/skins/NeoEase/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/NeoEase/side.ftl b/skins/NeoEase/side.ftl
index 2fc1d24..a96be17 100644
--- a/skins/NeoEase/side.ftl
+++ b/skins/NeoEase/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="side">
     <#if "" != noticeBoard>
     <div>
diff --git a/skins/NeoEase/skin.properties b/skins/NeoEase/skin.properties
index dec9bc0..7d7137b 100644
--- a/skins/NeoEase/skin.properties
+++ b/skins/NeoEase/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/NeoEase/tag-articles.ftl b/skins/NeoEase/tag-articles.ftl
index aee174a..eb5923f 100644
--- a/skins/NeoEase/tag-articles.ftl
+++ b/skins/NeoEase/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/NeoEase/tags.ftl b/skins/NeoEase/tags.ftl
index a12de0e..a9b0ad0 100644
--- a/skins/NeoEase/tags.ftl
+++ b/skins/NeoEase/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/archive-articles.ftl b/skins/classic/archive-articles.ftl
index 81ed52d..af5f1ab 100644
--- a/skins/classic/archive-articles.ftl
+++ b/skins/classic/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/article-list.ftl b/skins/classic/article-list.ftl
index 857d592..047f6e1 100644
--- a/skins/classic/article-list.ftl
+++ b/skins/classic/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div>
     <#list articles as article>
     <div class="article">
diff --git a/skins/classic/article.ftl b/skins/classic/article.ftl
index d9124cd..a5abeec 100644
--- a/skins/classic/article.ftl
+++ b/skins/classic/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/classic/author-articles.ftl b/skins/classic/author-articles.ftl
index 9bd48d3..fba06aa 100644
--- a/skins/classic/author-articles.ftl
+++ b/skins/classic/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/category-articles.ftl b/skins/classic/category-articles.ftl
index dbcdf72..40bcdb6 100644
--- a/skins/classic/category-articles.ftl
+++ b/skins/classic/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/common-comment.ftl b/skins/classic/common-comment.ftl
index 640cf23..0196ed3 100644
--- a/skins/classic/common-comment.ftl
+++ b/skins/classic/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}">
     <div class="comment-panel">
         <div class="comment-title">
diff --git a/skins/classic/css/classic.css b/skins/classic/css/classic.css
index 3202fa8..dc43aca 100644
--- a/skins/classic/css/classic.css
+++ b/skins/classic/css/classic.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin classic style
diff --git a/skins/classic/css/classic.min.css b/skins/classic/css/classic.min.css
index 9ff2c11..39727cb 100644
--- a/skins/classic/css/classic.min.css
+++ b/skins/classic/css/classic.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";.article-date,.article-title,.comment-title{background-color:#E3E3FF}#logoTitle,#sideNavi a.selected,#tagsPanel .tagPanel,.article-details-footer a,.article-footer a,.side-comment{text-decoration:none}.article-abstract,.comment-body,.content-reset{word-wrap:break-word}.article-date,.content-reset thead,.footer,.pagination{text-align:center}.has-toc>ul>li,.side-navi ul{list-style:none}a,a:link{color:#00C}a:active{color:red}a:visited{color:#551A8B}h5{font-size:12px}.content{margin:0 auto;max-width:1250px;padding:0 12px}.header{height:108px}.header .page-icon{height:14px;width:14px;margin:-1px 3px 0 0}.sub-title{font-size:14px;font-weight:400}.side{border-left:2px solid #E5ECF9;padding-left:12px;width:280px}.main{margin-right:-294px;width:100%}.main>div{min-width:280px;padding-right:318px}#logoTitle{font-family:"Microsoft YaHei";font-size:32px;line-height:64px}#statistic span{font-size:11px}.article,.comments{padding-bottom:24px}.article-title{border-top:1px solid #36C;margin-left:91px;padding:3px 0 6px 12px}.article-title sup{font-size:12px}.article-date{border:1px solid #BCF;float:left;margin:0 12px 12px 0;border-radius:5px;padding:7px 3px;width:70px;word-break:break-all}.article-body{margin-left:12px;line-height:145%}.article-footer{margin-right:12px}.article-details-footer{margin:36px 12px 0 0}.article-relative{line-height:22px;margin-top:24px}.comments{position:relative}.comment-title{border-top:1px solid #36C;padding:3px 12px}.comment-body-ref{background-color:#FFF;border:1px solid #E3E3FF;filter:alpha(opacity=90);left:88px;opacity:.9;position:absolute;top:27px;width:87%;z-index:10}.comment-body-ref .comment-title{border-top:0}.comment-body{padding:9px 12px 12px;overflow:hidden}.comment-picture{margin-right:12px}.comment-picture img{height:60px;width:60px}.comment-reply{margin:0 auto 24px}.comment-content{float:left;width:88%}#commentURL:focus,#commentURLReply:focus{box-shadow:-3px 1px 2px rgba(0,0,0,.3) inset}.error-msg{color:#36C}.error-footer{bottom:0;position:fixed;width:82%}#sideNavi a.selected{color:#000}#sideNavi li{line-height:22px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;-o-text-overflow:ellipsis}#sideNavi li.aboutMe,#sideNavi li.side-navi-notice{white-space:normal}#sideNavi sup{margin-right:3px;color:green}#recentComments p{display:inline}#recentComments br,#recentComments div{display:none}.line{border-top:thin dotted #BBB;margin-top:12px;padding-top:12px}.pagination{margin:16px}.pagination a,.pagination a:visited{color:#4272DB;padding:0 3px;text-decoration:none}.pagination a.selected{color:#000;font-weight:700}#tagsPanel .tagPanel{border:2px solid;cursor:pointer;float:left;margin:3px;border-radius:6px}#tagsPanel .tagPanel:hover{background-color:#EEE;border:2px dashed}.error-title{border-top:1px solid #36C;background-color:#E5ECF9;margin-left:12px;padding:6px 12px}.error-panel{margin-left:12px;padding:24px}.content-reset h1,.content-reset h2{padding-bottom:.3em;border-bottom:1px solid #eee}.browserIcon,.commentIcon{background-image:url(../../../images/icon.png);cursor:pointer;height:16px;margin-right:3px;width:16px}.commentIcon{background-position:-32px -16px}.browserIcon{background-position:-128px -16px}.goTopIcon{background-position:-128px -32px}.goBottomIcon{background-position:-144px -32px}.footer{margin:30px 0}.content-reset{font-family:"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif;overflow:auto;line-height:1.5;font-size:16px;word-break:break-all}.content-reset a{color:#ff4d3a}.content-reset ol,.content-reset ul{padding-left:2em;margin-top:0;margin-bottom:16px}.content-reset li{margin-top:.25em}.content-reset h1,.content-reset h2,.content-reset h3,.content-reset h4,.content-reset h5,.content-reset h6{margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.25}.content-reset h1{font-size:2em}.content-reset h2{font-size:1.5em}.content-reset h3{font-size:1.25em}.content-reset h4{font-size:1em}.content-reset h5{font-size:.875em}.content-reset h6{font-size:.85em}.content-reset hr{height:.25em;padding:0;margin:24px 0;background-color:#e7e7e7;border:0}.content-reset p{margin-top:0;margin-bottom:16px}.content-reset blockquote{padding:0 1em;color:#777;border-left:.25em solid #ddd;margin-bottom:16px}.content-reset blockquote p{margin:0}.content-reset iframe{border:1px solid #ccc}.content-reset table{width:100%;border:1px solid #dedede;margin:15px auto;border-collapse:collapse;empty-cells:show}.content-reset td,.content-reset th{height:35px;border:1px solid #dedede;padding:0 10px}.content-reset th{font-weight:700;text-align:center!important;background:rgba(158,188,226,.2)}.content-reset tbody tr:nth-child(2n){background:rgba(158,188,226,.12)}.content-reset tr:hover{background:#efefef}.content-reset code{padding:.2em .4em;margin:0;font-size:85%;background-color:rgba(252,41,41,.12);border-radius:3px;color:#d23f31;font-family:mononoki,Consolas,"Liberation Mono",Menlo,Courier,monospace}.content-reset pre>code{padding:.5em;color:#333;background-color:rgba(0,0,0,.04);background-image:url(../images/code-bg.png);background-size:20px 20px;border-radius:5px}.content-reset kbd{display:inline-block;padding:3px 5px;font:11px Consolas,"Liberation Mono",Menlo,Courier,monospace;line-height:10px;color:#555;vertical-align:middle;background-color:#fcfcfc;border:1px solid #ccc;border-bottom-color:#bbb;border-radius:3px;box-shadow:inset 0 -1px 0 #bbb}.content-reset img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic;overflow:hidden;font-size:12px}.has-toc>ul>li{float:left;width:50%;text-align:center;margin:15px 0;cursor:pointer}.has-toc>ul>li.current{color:#36C}
\ No newline at end of file
diff --git a/skins/classic/footer.ftl b/skins/classic/footer.ftl
index b86cc55..c37e146 100644
--- a/skins/classic/footer.ftl
+++ b/skins/classic/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <span style="color: gray;">&copy; ${year}</span> - <a href="${servePath}">${blogTitle}</a>${footerContent}<br/>
 Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}&nbsp;&nbsp;
 
diff --git a/skins/classic/header.ftl b/skins/classic/header.ftl
index c7715af..20826b0 100644
--- a/skins/classic/header.ftl
+++ b/skins/classic/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="marginBottom12">
     <h1 class="title">
         <a href="${servePath}" id="logoTitle" >
diff --git a/skins/classic/index.ftl b/skins/classic/index.ftl
index 997c7c3..cb22e8e 100644
--- a/skins/classic/index.ftl
+++ b/skins/classic/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/lang/lang_en_US.properties b/skins/classic/lang/lang_en_US.properties
index de14299..670ebe2 100644
--- a/skins/classic/lang/lang_en_US.properties
+++ b/skins/classic/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/classic/lang/lang_zh_CN.properties b/skins/classic/lang/lang_zh_CN.properties
index 942fbeb..39396ab 100644
--- a/skins/classic/lang/lang_zh_CN.properties
+++ b/skins/classic/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/classic/macro-comments.ftl b/skins/classic/macro-comments.ftl
index 65c4b99..5989f42 100644
--- a/skins/classic/macro-comments.ftl
+++ b/skins/classic/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <h2 class="marginBottom12">${commentLabel}</h2>  
 <div class="comments" id="comments">
diff --git a/skins/classic/macro-head.ftl b/skins/classic/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/classic/macro-head.ftl
+++ b/skins/classic/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/classic/page.ftl b/skins/classic/page.ftl
index 0992f9a..5dd11df 100644
--- a/skins/classic/page.ftl
+++ b/skins/classic/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/classic/side.ftl b/skins/classic/side.ftl
index 53c0372..2164ac6 100644
--- a/skins/classic/side.ftl
+++ b/skins/classic/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="sideNavi" class="side-navi">
     <#if "" != noticeBoard>
     <ul class="marginTop12">
diff --git a/skins/classic/skin.properties b/skins/classic/skin.properties
index 17ff815..afba89b 100644
--- a/skins/classic/skin.properties
+++ b/skins/classic/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/classic/tag-articles.ftl b/skins/classic/tag-articles.ftl
index 1a8aa53..cbd9c89 100644
--- a/skins/classic/tag-articles.ftl
+++ b/skins/classic/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/classic/tags.ftl b/skins/classic/tags.ftl
index 417d570..6cfaba7 100644
--- a/skins/classic/tags.ftl
+++ b/skins/classic/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/archive-articles.ftl b/skins/ease/archive-articles.ftl
index 069c136..b6ae375 100644
--- a/skins/ease/archive-articles.ftl
+++ b/skins/ease/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/archives.ftl b/skins/ease/archives.ftl
index 26405b2..df291fb 100644
--- a/skins/ease/archives.ftl
+++ b/skins/ease/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/article-list.ftl b/skins/ease/article-list.ftl
index 6bca0f2..367e1d1 100644
--- a/skins/ease/article-list.ftl
+++ b/skins/ease/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <ul>
     <#list articles as article>
     <li class="article<#if !article_has_next> article-last</#if>">
diff --git a/skins/ease/article.ftl b/skins/ease/article.ftl
index 323120b..16c4005 100644
--- a/skins/ease/article.ftl
+++ b/skins/ease/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/ease/author-articles.ftl b/skins/ease/author-articles.ftl
index 55937b1..ba418d5 100644
--- a/skins/ease/author-articles.ftl
+++ b/skins/ease/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/category-articles.ftl b/skins/ease/category-articles.ftl
index 0aac7c3..5a2021e 100644
--- a/skins/ease/category-articles.ftl
+++ b/skins/ease/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/common-comment.ftl b/skins/ease/common-comment.ftl
index 2052594..1a8ff0a 100644
--- a/skins/ease/common-comment.ftl
+++ b/skins/ease/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}">
     <img class="comment-header" title="${comment.commentName}"
          alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
diff --git a/skins/ease/css/ease.css b/skins/ease/css/ease.css
index 0e60d38..c42142d 100644
--- a/skins/ease/css/ease.css
+++ b/skins/ease/css/ease.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /*
 * Skin ease style.
 *
diff --git a/skins/ease/css/ease.min.css b/skins/ease/css/ease.min.css
index 7d03cfc..f1a6062 100644
--- a/skins/ease/css/ease.min.css
+++ b/skins/ease/css/ease.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 body,img{font-size:12px}.footer,sup{-webkit-text-size-adjust:none}.clear,img{border:0;overflow:hidden}.article-body,.clear,.comment-panel,img{overflow:hidden}a,input,textarea{outline:0}#goTop,.article-next,.article-title span,.form img,.translate-ico{cursor:pointer}.article-relative ul,.dynamic ul,.nav ul,.wrapper>ul{list-style:none}body,div,html,li,ul{margin:0;padding:0}body{font-family:Verdana,arial,'\5fae\8f6f\96c5\9ed1';background-color:#FCFCFC}::selection{background-color:#D5D5D5;color:#FCFCFC}::-moz-selection{background-color:#D5D5D5;color:#FCFCFC}a{color:#009EB8;text-decoration:none}a:visited{color:#00b4d2}a:hover{text-decoration:underline}a:active{color:#00889f}img{vertical-align:middle;max-width:100%;height:auto;-ms-interpolation-mode:bicubic}sup{font-size:10px;font-weight:400}.left{float:left}.right{float:right}.clear{background-color:transparent;clear:both;display:block;font-size:0;height:0;line-height:0}.none{display:none}.ft-gray{color:grey}.ft-gray:visited{color:#9a9a9a}.ft-gray:hover{color:#676767;text-decoration:none}.fn-mgtb10{margin:10px 0}.logo{padding:0 5px;text-shadow:0 0 1px #D5D5D5}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#search,.translate-ico{background-repeat:no-repeat;float:right}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 1px}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}#search,.translate-ico{background-image:url(/skins/ease/images/icons.png)}.translate-ico{background-position:1px -125px;border:1px solid #D5D5D5;border-radius:3px;height:16px;margin:-3px 0 0 15px;padding:1px;width:16px}.translate-ico:hover{border-color:#9a9a9a;box-shadow:0 0 1px grey;background-color:#FCFCFC}#search,.main{background-color:#FFF}.wrapper{margin:0 auto;width:990px}.main{padding-bottom:50px}.header{width:100%;z-index:1}.header .title{border-bottom:1px solid grey;font-size:26px;font-weight:400}.header .sub-title{font-size:11px}#search,.nav a{font-size:14px}#search{background-position:7px -99px;border:1px solid #D5D5D5;border-radius:2px;box-shadow:0 1px 1px rgba(0,0,0,.1) inset;color:grey;height:19px;line-height:145%;padding:4px 10px 4px 28px;width:24px;-moz-transition:width .4s ease,background .4s ease;-webkit-transition:width .4s ease,background .4s ease;transition:width .4s ease,background .4s ease}#search:focus{width:150px}.banner{margin-bottom:20px}.banner .notice{float:left;margin:20px 0 0 50px}.nav{background-color:#2C2C2C;box-shadow:0 2px 2px #D5D5D5,0 3px 3px -3px #D5D5D5 inset;border-top:1px solid #e2e2e2;border-bottom:1px solid #e2e2e2;height:29px;top:0;width:100%;z-index:1}.nav li,.nav ul{float:left}.nav a{color:#C9C9C9;display:block;float:left;font-weight:700;line-height:29px;margin-right:20px;padding:0 10px;text-decoration:none;transition:color .4s ease,background-color .8s ease;-webkit-transition:color .4s ease,background-color .8s ease;-moz-transition:color .4s ease,background-color .8s ease}#goTop,.footer{font-size:11px}.nav a:hover{color:#FFF;background-color:#535353}.nav a.current{background-color:#FFF;box-shadow:0 -1px 1px rgba(0,0,0,.1) inset,0 1px 1px rgba(0,0,0,.1) inset;color:grey}.nav img{margin-left:3px}.nav .page-icon{float:left;height:14px;width:14px;margin:8px 5px 0 0}.footer{border-top:1px solid #D5D5D5;box-shadow:0 -1px 1px #D5D5D5;padding:12px 0}#goTop{background:url(/skins/ease/images/icons.png) 5px -51px no-repeat #D5D5D5;border-radius:2px 2px 0 0;box-shadow:0 0 3px #D5D5D5;height:21px;line-height:21px;padding:0 10px 0 23px;position:absolute;right:50px;display:none}#goTop:hover{background-color:#c8c8c8;box-shadow:0 0 3px #c8c8c8}.main>.wrapper>h2{margin:0;padding:14px 0}.article{border-bottom:1px solid #f6f6f6;padding:30px 50px}.article:hover{border-bottom-color:#ddd;box-shadow:0 0 1px #f6f6f6 inset;background-color:#FCFCFC}.article-body{line-height:145%;word-wrap:break-word;margin-bottom:10px;font-size:14px}.article-body ol,.article-body ul{margin-left:40px;padding-left:0}.article-body a{color:grey;text-decoration:underline}.article-body a:vidited{color:#9a9a9a}.article-body a:hover{color:#676767}.article-body>div{min-height:32px}.article-title h2{display:inline}.article-last:hover{border-bottom:1px solid #f6f6f6}.article-next{border:1px solid #eee;background-color:#F9F9F9;font-size:14px;line-height:36px;text-align:center}.article-next:hover,.article-relative{background-color:#FCFCFC}.article-relative{box-shadow:0 0 2px #D5D5D5;float:left;margin:10px 0;padding:0 20px 10px;width:382px}.article-relative:hover{background-color:#fff;box-shadow:0 0 4px #D5D5D5}#relevantArticles{margin-right:40px}#externalRelevantArticles{width:357px;margin-top:13px}#comments{padding:20px 50px;position:relative}.comment-header{float:left;background-color:#FFF;border:1px solid #DEDEDE;padding:2px;height:60px;width:60px}.comment-panel{float:left;line-height:16px;margin:0 0 20px 10px;min-height:64px;width:814px}.comment-body-ref{background-color:#FCFCFC;box-shadow:0 0 2px #D5D5D5;display:block;left:127px;padding:10px;opacity:.9;filter:alpha(opacity=90);position:absolute;border:1px solid #e2e2e2}.comment-body-ref>.comment-header{border:0;float:right;height:48px;width:48px;padding:0}#tags a,#tags li,.dynamic .module,.links li,.wrapper>.form{float:left}.comment-body-ref>.comment-panel{margin:0 20px 0 0;min-height:48px;width:725px}.comment-body-ref>.comment-panel>.right{display:none}#replyForm{margin-left:25px}.form{padding:0 50px 20px}.form th{text-align:right;white-space:nowrap}.archives h3,.dynamic h3{text-align:center}.form input[type=text],.form input[type=password],.form textarea{background-color:#FCFCFC;border-width:0;box-shadow:0 0 2px #BCBCBC;font-family:Verdana,arial,\5fae\8f6f\96c5\9ed1;font-size:12px;margin:0 5px 10px 0;outline:0;padding:0 3px;height:28px;line-height:28px;width:260px}.form input:focus,.form textarea:focus{box-shadow:0 0 4px #D5D5D5}.form textarea{height:120px;overflow:auto;width:426px;line-height:16px}.form button{background-color:#F6F6F6;border:0;box-shadow:0 0 2px #D5D5D5;height:28px;line-height:28px;padding:0 12px;color:grey}.form button:hover{box-shadow:0 0 4px #D5D5D5;text-shadow:0 0 2px}#tags a,.form img{box-shadow:0 0 2px #D5D5D5;background-color:#FCFCFC}.form img{height:24px;padding:1px}#tags.other-main{margin:47px 44px 0;width:902px}#tags li{height:38px}#tags a{margin:3px 6px;padding:3px 12px}#tags a:hover{text-shadow:0 0 2px;text-decoration:none;box-shadow:0 0 4px #D5D5D5}.tags1,.tags1:visited{font-size:12px;color:#a7a7a7}.tags2,.tags2:visited{font-size:14px;color:grey}.tags3,.tags3:visited{font-size:16px;color:#595959}.tags4,.tags4:visited{font-size:18px;color:#323232}.tags5,.tags5:visited{font-size:20px;color:#0a0a0a}.archives{position:relative}.archives>div{background-color:#FCFCFC;box-shadow:0 0 2px #D5D5D5;padding-bottom:20px;line-height:20px;margin:20px;width:270px;position:absolute;top:0}.archives>div:hover{box-shadow:0 0 4px #D5D5D5}.archives a{display:block;margin-left:77px}.dynamic .module{background-color:#FCFCFC;box-shadow:0 0 2px #D5D5D5;line-height:20px;margin:20px;padding:10px 20px 20px;width:380px}.dynamic .module:hover{box-shadow:0 0 4px #D5D5D5}.dynamic .side-comments{width:840px}.dynamic .side-comments .comment-panel{width:760px}.dynamic .side-tags li{float:left;margin:0 5px}.dynamic .side-most-comment,.dynamic .side-most-view{margin-bottom:0}.other-main.links{margin-top:45px}.links li{line-height:22px;margin:0 20px;width:270px}.other-main{display:inline-block;margin:30px 30px 0;width:930px}#tags a,.archives>div,.article-relative,.dynamic .module,.form input[type=text],.form input[type=password],.form textarea{border:1px solid #f2f2f2}#tags a:hover,.archives>div:hover,.article-relative:hover,.dynamic .module:hover,.form input:focus,.form textarea:focus{border:1px solid #e2e2e2}
\ No newline at end of file
diff --git a/skins/ease/dynamic.ftl b/skins/ease/dynamic.ftl
index e9fd0cd..b6f26ef 100644
--- a/skins/ease/dynamic.ftl
+++ b/skins/ease/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/footer.ftl b/skins/ease/footer.ftl
index 9659d11..712d4b5 100644
--- a/skins/ease/footer.ftl
+++ b/skins/ease/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer">
     <div class="wrapper">
         <div class="left">
diff --git a/skins/ease/header.ftl b/skins/ease/header.ftl
index 9b50cf6..96d237d 100644
--- a/skins/ease/header.ftl
+++ b/skins/ease/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header">
     <div class="wrapper banner">
         <div class="left">
diff --git a/skins/ease/index.ftl b/skins/ease/index.ftl
index 6b33302..8a51448 100644
--- a/skins/ease/index.ftl
+++ b/skins/ease/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/js/ease.js b/skins/ease/js/ease.js
index 22e3fcc..fb8d345 100644
--- a/skins/ease/js/ease.js
+++ b/skins/ease/js/ease.js
@@ -1,19 +1,20 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
-
 /**
  * @fileoverview ease js.
  *
diff --git a/skins/ease/js/ease.min.js b/skins/ease/js/ease.min.js
index 992432e..5d169c4 100644
--- a/skins/ease/js/ease.min.js
+++ b/skins/ease/js/ease.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var goTranslate=function(){window.open("http://translate.google.com/translate?sl=auto&tl=auto&u="+location.href)},getNextPage=function(){var e=$(".article-next");currentPage+=1;var t="/articles/";if(1===$("#tag").length){var a=location.pathname.split("/");t="/articles/tags/"+a[a.length-1]+"/"}else if(1===$("#archive").length){var a=location.pathname.split("/");t="/articles/archives/"+a[a.length-2]+"/"+a[a.length-1]+"/"}else if(1===$("#author").length){var a=location.pathname.split("/");t="/articles/authors/"+a[a.length-1]+"/"}$.ajax({url:latkeConfig.servePath+t+currentPage,type:"GET",beforeSend:function(){e.css("background","url("+latkeConfig.staticServePath+"/skins/ease/images/ajax-loader.gif) no-repeat scroll center center #fefefe")},success:function(t,a){if(t.sc){for(var i="",r=t.rslts.pagination,n=0;n<t.rslts.articles.length;n++){var l=t.rslts.articles[n],s="";t.rslts.articles.length-1===n&&(s=" article-last"),i+='<li class="article'+s+'"><div class="article-title"><h2><a rel="bookmark" class="ft-gray" href="'+latkeConfig.servePath+l.articlePermalink+'">'+l.articleTitle+"</a>",l.hasUpdated&&(i+="<sup>"+Label.updatedLabel+"</sup>"),l.articlePutTop&&(i+="<sup>"+Label.topArticleLabel+"</sup>"),i+='</h2><div class="right"><a rel="nofollow" class="ft-gray" href="'+latkeConfig.servePath+l.articlePermalink+'#comments">'+ +l.articleCommentCount+"&nbsp;&nbsp;"+Label.commentLabel+'</a>&nbsp;&nbsp;<a rel="nofollow" class="ft-gray" href="'+latkeConfig.servePath+l.articlePermalink+'">'+l.articleViewCount+"&nbsp;&nbsp;"+Label.viewLabel+'</a></div><div class="clear"></div></div><div class="article-body"><div id="abstract'+l.oId+'">'+l.articleAbstract+'</div><div id="content'+l.oId+'" class="none"></div></div><div class="right ft-gray">',l.hasUpdated?i+=Util.toDate(l.articleUpdateTime,"yy-MM-dd HH:mm"):i+=Util.toDate(l.articleCreateTime,"yy-MM-dd HH:mm"),i+=' <a href="'+latkeConfig.servePath+"/authors/"+l.authorId+'">'+l.authorName+'</a></div><div class="left ft-gray">'+Label.tag1Label+" ";for(var o=l.articleTags.split(","),c=0;c<o.length;c++)i+='<a rel="tag" href="'+latkeConfig.servePath+"/tags/"+encodeURIComponent(o[c])+'">'+o[c]+"</a>",c<o.length-1&&(i+=", ");i+='</div><div class="clear"></div></li>'}$(".article-last").removeClass("article-last"),$(".main>.wrapper>ul").append(i),r.paginationPageCount===currentPage?e.remove():e.css("background","none")}}})},ease={$header:$(".header"),headerH:103,$body:$(".main > .wrapper"),$nav:$(".nav"),getCurrentPage:function(){var e=$(".article-next");e.length>0&&(window.currentPage=e.data("page"))},setNavCurrent:function(){$(".nav ul a").each(function(){var e=$(this);e.attr("href")===location.href?e.addClass("current"):/\/[0-9]+$/.test(location.pathname)&&($(".nav ul li")[0].className="current")})},initCommon:function(){Util.init(),Util.replaceSideEm($(".recent-comments-content")),Util.buildTags("tagsSide")},initArchives:function(){var e=$(".archives");if(!(e.length<1)){$(".footer").css("marginTop","30px");for(var t=[],a=e.find("span").each(function(){for(var e=$(this).data("year"),a=!0,i=0;i<t.length;i++)if(e===t[i]){a=!1;break}a&&t.push(e)}),i="",r=0;r<t.length;r++){for(var n="",l=0;l<a.length;l++){var s=$(a[l]);s.data("year")===t[r]&&(n+=s.html())}i+="<div><h3 class='ft-gray'>"+t[r]+"</h3>"+n+"</div>"}e.html(i);for(var o=$(".archives>div"),c=0,h=0,g=[],d=0;d<o.length;d++){for(var f=0;f<3&&!(d>=o.length);f++)o[d].style.left=310*f+"px",c>0?(""!==o[d-3].style.top&&(h=parseInt(o[d-3].style.top)),o[d].style.top=$(o[d-3]).height()+60+h+"px",g[f]=parseInt(o[d].style.top)+$(o[d]).height()+60):g[f]=$(o[d]).height()+60,f<2&&(d+=1);c+=1}e.height(g.sort()[g.length-1])}},scrollEvent:function(){var e=this;$(window).scroll(function(){var t=$(window).scrollTop();if(t>e.headerH){var a=$(window).height(),i=t+a-21;$("body").height()-58<=t+a&&(i=$(".footer").offset().top-21),$("#goTop").fadeIn("slow").css("top",i)}else $("#goTop").hide()})},setDynamic:function(){var e=$(".dynamic");if(!($(".dynamic").length<1)){var t=e.find(".side-categories"),a=e.find(".side-tags"),i=e.find(".side-most-comment"),r=e.find(".side-most-view");t.height()>a.height()?a.height(t.height()):t.height(a.height()),i.height()>r.height()?r.height(i.height()):i.height(r.height()),$(".article-body").each(function(){this.innerHTML=Util.replaceEmString($(this).html())})}}};!function(){ease.getCurrentPage(),ease.initCommon(),ease.scrollEvent(),ease.setNavCurrent(),ease.initArchives(),ease.setDynamic()}();
\ No newline at end of file
diff --git a/skins/ease/lang/lang_en_US.properties b/skins/ease/lang/lang_en_US.properties
index be8602f..aa021dc 100644
--- a/skins/ease/lang/lang_en_US.properties
+++ b/skins/ease/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/ease/lang/lang_zh_CN.properties b/skins/ease/lang/lang_zh_CN.properties
index 78394ac..28c5da0 100644
--- a/skins/ease/lang/lang_zh_CN.properties
+++ b/skins/ease/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/ease/links.ftl b/skins/ease/links.ftl
index acebae8..1ddccaa 100644
--- a/skins/ease/links.ftl
+++ b/skins/ease/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/macro-comments.ftl b/skins/ease/macro-comments.ftl
index c20d796..2216172 100644
--- a/skins/ease/macro-comments.ftl
+++ b/skins/ease/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div id="comments">
     <#list commentList as comment>
diff --git a/skins/ease/macro-head.ftl b/skins/ease/macro-head.ftl
index 3cbc070..99db4ab 100644
--- a/skins/ease/macro-head.ftl
+++ b/skins/ease/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/ease/page.ftl b/skins/ease/page.ftl
index 6907acd..427c1bd 100644
--- a/skins/ease/page.ftl
+++ b/skins/ease/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/ease/skin.properties b/skins/ease/skin.properties
index ccdb3d2..5f6b2fb 100644
--- a/skins/ease/skin.properties
+++ b/skins/ease/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/ease/tag-articles.ftl b/skins/ease/tag-articles.ftl
index 65752b3..4d18739 100644
--- a/skins/ease/tag-articles.ftl
+++ b/skins/ease/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/ease/tags.ftl b/skins/ease/tags.ftl
index 95f0b71..952b16b 100644
--- a/skins/ease/tags.ftl
+++ b/skins/ease/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/archive-articles.ftl b/skins/favourite/archive-articles.ftl
index d68479d..2a4677d 100644
--- a/skins/favourite/archive-articles.ftl
+++ b/skins/favourite/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/article-list.ftl b/skins/favourite/article-list.ftl
index d181e63..2b071b7 100644
--- a/skins/favourite/article-list.ftl
+++ b/skins/favourite/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="article">
     <h2 class="article-title">
diff --git a/skins/favourite/article.ftl b/skins/favourite/article.ftl
index 65983ee..23d1fef 100644
--- a/skins/favourite/article.ftl
+++ b/skins/favourite/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/favourite/author-articles.ftl b/skins/favourite/author-articles.ftl
index 904d289..50e90df 100644
--- a/skins/favourite/author-articles.ftl
+++ b/skins/favourite/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/category-articles.ftl b/skins/favourite/category-articles.ftl
index c46d75d..0215769 100644
--- a/skins/favourite/category-articles.ftl
+++ b/skins/favourite/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/common-comment.ftl b/skins/favourite/common-comment.ftl
index 7e76580..a9797db 100644
--- a/skins/favourite/common-comment.ftl
+++ b/skins/favourite/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="comment-body">
     <div class="comment-panel">
         <div class="left comment-author">
diff --git a/skins/favourite/css/favourite.css b/skins/favourite/css/favourite.css
index 15dfd5d..5f7e0fb 100644
--- a/skins/favourite/css/favourite.css
+++ b/skins/favourite/css/favourite.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin favoutite style
diff --git a/skins/favourite/css/favourite.min.css b/skins/favourite/css/favourite.min.css
index e8c3ce6..9506093 100644
--- a/skins/favourite/css/favourite.min.css
+++ b/skins/favourite/css/favourite.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";#header-navi li,.side-navi ul{list-style:none}.side-navi .navi-comments li div,.side-navi li{text-overflow:ellipsis;-o-text-overflow:ellipsis;overflow:hidden}.comment-form img,.footer .goTop{cursor:pointer}#header-navi li a,#logoTitle,#navigation a,#tagsPanel .tagPanel,.article-title a,.error-panel a,.side-navi a.selected{text-decoration:none}.comment-content,.side-navi li,.substance,img{overflow:hidden}body{background:url(../images/bg.jpg) left top}a,a:active,a:link,a:visited{color:#2970A6;text-decoration:none}a:hover{color:#000}h1{font-size:300%}h4{font-size:160%;padding:18px 0 0 80px}h5,img{font-size:12px}img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic}.margin5R{margin-right:5px}.margin5{margin:5px}.margin25{margin:25px 25px 0}.content{margin:0 auto;width:960px}.header{height:65px;padding:15px 0 0 30px}.body{background:url(../images/cont-bg.png) right center repeat-y #FFF;min-height:400px}.side-navi{background:url(../images/cont-bg.png) left top repeat-y #00798A;color:#fff;font-size:95%;line-height:145%;padding-top:8px;position:relative;width:300px}.side-navi a{color:#FFF}.comm div{display:none}#header-navi li a,#logoTitle,.lamb a{display:block;outline:0}.main{padding:0 0 15px 35px;width:600px}.footer{color:#fff;line-height:145%}#logoTitle{color:#fff;font-family:"Microsoft YaHei";height:50px}.sub-title{border-top:1px solid #FFF;color:#FFF;font-size:18px;padding:0 15px}#header-navi{background:#FFF;border-bottom:1px solid #A6A6A6}#header-navi li{float:left;margin-left:0}#header-navi li a{background:url(../images/menu.gif) no-repeat;color:#382E1F;font-size:11px;height:31px;line-height:31px;margin-left:-10px;padding:0 20px}#header-navi li a:hover{background-position:0 -31px}#header-navi li a.home{background-position:0 -93px;margin-left:0;padding:0;text-indent:-999em;width:45px}#header-navi li a.home:hover{background-position:0 -124px}#header-navi li a.lastNavi:hover{background-position:0 0}#header-navi li.selected a{background-position:0 -62px}#header-navi li.selected a.home{background-position:0 -155px}#statistic{left:250px;position:relative;text-align:left;top:110px;width:600px}#navigation a,.comment-author,.pagination,.posttime-D,.posttime-MY{text-align:center}.footer .copyright{padding-top:60px;text-align:center}.footer .goTop{background:url(../images/icons.gif) 0 -304px no-repeat;font-size:12px;padding-left:16px;position:absolute;right:17px;top:0;width:25px}.article{border-top:1px dotted #0184AF;padding-bottom:15px}.article-title{font-size:22px;margin-top:10px;padding:0 5px 3px;position:relative;top:20px}.article-title sup{font-size:12px}.article-title a{color:#4C4C4C}.article-title a:hover{color:#2970A6}.article-abstract{line-height:145%;margin:5px 0 5px 5px;word-wrap:break-word}.article-browserIcon,.articles-commentIcon,.dateIcon,.tagsIcon{background:url(../images/icons.gif) 0 -400px no-repeat;float:left;height:30px;margin-right:6px;width:30px}.tagsIcon{background:url(../images/tagsIcon.png)}.dateIcon{background-position:0 -48px}.articles-commentIcon{background:url(../images/comment.jpg)}.article-browserIcon{background:url(../images/category.jpg)}.article-body{line-height:145%;padding:5px 0 0 5px}.article-footer{margin:0 5px 10px}.article-relative{line-height:22px;margin-top:20px}.article-relative h4{font-size:12px;padding:0}.comments{background:#FCFCFC;border-bottom:1px solid #CCC;border-top:1px solid #CCC;margin:15px -15px;padding:0 15px 15px;position:relative}.comment-title{background-color:#E3E9FF;border-top:1px solid #36C;padding:3px 12px;position:relative}.comment-body-ref{background-color:#FFF;filter:alpha(opacity=90);left:217px;opacity:.9;padding:6px;position:absolute;width:605px;z-index:10}.comment-body{margin-top:15px}.comment-author{float:left;width:81px}.comment-author div{background:url(../images/commentpoint.png) 100% 33% no-repeat;margin-top:10px;padding-right:14px}.comment-author img{border:1px solid #999;height:32px;padding:1px;width:32px}.comment-author a{font-weight:700;white-space:nowrap;margin-right:14px}.comment-info{background:url(../images/comment.gif) no-repeat #EDEFF0;font-size:12px;margin:-62px 0 0 80px;padding:10px 15px 0;width:494px}.comment-content{background:url(../images/comment.gif) 100% 100% no-repeat;font-size:12px;line-height:145%;margin:0 -15px;padding:9px 15px 10px;word-wrap:break-word}.comment-form input,.comment-form textarea{background:url(../images/textfield.gif) 50% 0 repeat-x #FFF;border:1px solid #A6A6A6;color:#555;font-family:Helvetica,Arial,sans-serif;height:16px;outline:0;padding:2px 1px;width:200px}.comment-form textarea{font-size:12px;height:auto;width:600px}.comment-form button{background:#B4D666;border-color:#B4D666 #81B840 #81B840 #B4D666;border-radius:0;border-style:solid;border-width:1px;color:#2970A6;font-size:12px;height:22px;line-height:22px;padding:0 6px}.comment-form button:hover{background:#98C64C;border-color:#76B33A #98C64C #98C64C #76B33A;color:#074A7E}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{background-image:url(../../../images/emotions/emotions.png);background-size:120px}.error-msg{color:#36C}.side-navi .item{padding:12px 15px}.side-navi .navi-comments img{border:1px solid #999;height:32px;margin-right:7px;padding:1px;width:32px}.side-navi .navi-comments a{color:#fff;font-weight:700}.side-navi .navi-comments .side-comment{color:#fff;font-weight:400;height:18px;width:210px}.side-navi .navi-comments .side-comment img{border:0;height:16px;margin-right:0;padding:0;width:16px}.side-navi .navi-comments li{padding:2px 0}.side-navi .navi-comments li div{width:215px}.side-navi a.selected{color:#555}.side-navi .navi-comments li,.side-navi ul.navi-tags li{background-image:none;padding-left:0}.side-navi ul.navi-tags li img{height:16px;padding-right:6px;width:16px}.side-navi li{background:url(../images/pl.png) no-repeat;margin:5px 0 0;padding-left:22px;white-space:nowrap}.side-navi li.aboutMe{white-space:normal}.side-navi .line{border-color:#67C3CF;border-style:dotted;border-width:1px 0}.pagination{margin:16px}.pagination a,.pagination a:visited{color:#4272DB;padding:0 3px}.error-panel a,.pagination a.selected{color:#000;font-weight:700}#tagsPanel .tagPanel{border:2px solid;border-radius:6px;cursor:pointer;float:left;margin:3px}#tagsPanel .tagPanel:hover{background-color:#EEE;border:2px dashed}.error-body{background:url(../images/cont-bg_2.png) left repeat-y;height:400px;padding:12px}.error-title{line-height:72px}.error-panel{margin:0 auto;width:201px}.error-panel a{background:#9CD941;border-color:#D0F29D #398A38 #398A38 #D0F29D;border-style:solid;border-width:1px;font-size:14px;margin-right:3px;padding:10px 15px}.error-panel a:hover{background-color:#ADEb51}.kind-panel{background:url(../images/box.gif) 100% 100% no-repeat #F4F5F7;margin-bottom:10px;padding:8px 12px}.kind-title{background:url(../images/box.gif) no-repeat #E3E4E6;border-bottom:1px solid #CCC;font-weight:700;padding:6px 12px}.top{background:url(../images/top-bg.jpg) left top repeat-x;border:none;color:#fff;height:87px}.footer-icon{background:url(../images/footer-ico.png) center center no-repeat;height:133px}.info{background:url(../images/info.png) left top repeat-x;height:110px;position:relative}.lamb,.thinks{position:absolute}.logoutIcon{background-position:-96px -16px}#qq2{float:right;padding:68px 120px 0 0}.thinks{background:url(../images/thinks.png) left top no-repeat;height:420px;right:12px;top:36px;width:388px;z-index:1}.lamb,.lamb a{height:80px;width:320px}.lamb{background:url(../images/lamb.png) left top no-repeat;left:460px;top:100px}.null{height:160px}#navigation{height:87px;margin:0 auto;width:960px}#navigation a.classifiche{background:url(../images/classifiche.png) left top no-repeat}#navigation a.about{background:url(../images/about.png) left top no-repeat}#navigation a.home{background:url(../images/home.png) left top no-repeat}#navigation a.Guestbook{background:url(../images/Guestbook.png) left top no-repeat}#navigation a{background:url(../images/default.png) left top no-repeat;color:#FFF;cursor:pointer!important;float:left;height:70px;margin-left:10px;outline:0;padding-top:2px;width:73px}.admins{position:relative;top:-85px}.paint,.rings{position:absolute}#mostCommentArticles li a,#mostViewCountArticles li a,#save li a,#sideAuthor li a,#sideLink li a,.navi-tags li a{color:#fff}.roundtop{background:url(../images/roundtop.png) left top no-repeat;height:75px}.roundbottom{background:url(../images/roundbottom.png) left top no-repeat;height:35px}.paint{background:url(../images/paint.png) left top no-repeat;height:183px;left:34px;top:450px;width:87px}.rings{background:url(../images/anelli.png) left top no-repeat;height:121px;left:-28px;width:56px;z-index:80}.antefatto{background:url(../images/twitter.png) left top no-repeat;height:64px}.ads{background:url(../images/ads.png) left top no-repeat;height:64px}.categorie{background:url(../images/categorie.png) left top no-repeat;height:64px}#sideNavi .tags{background:url(../images/tagsIcon.png) left top no-repeat;height:52px;background-size:contain}.archivio,.blog,.cuore,.esclamativo{height:64px}.archivio{background:url(../images/archivio.png) left top no-repeat}.side-author{background:url(../images/antefatto.png) left top no-repeat;height:64px}.blog{background:url(../images/blog.png) left top no-repeat}.cuore{background:url(../images/cuore.png) left top no-repeat}.esclamativo{background:url(../images/esclamativo.png) left top no-repeat}.posttime-blue{background-color:#0184AF}.posttime-blue,.posttime-pink{border:1px solid #999;clear:right;color:#FFF;float:right;font-family:Tohama,Arial,Helvetica,sans-serif;height:60px;position:relative;right:30px;top:-25px;width:60px}.posttime-MY{border-bottom:1px solid #FFF;font-size:9px;height:15px;padding-top:5px}.posttime-D{font-size:28px;font-weight:700}.note{background:#E7F5F7;margin:40px 0 0 -49px;padding:10px 10px 10px 85px;position:relative;width:574px;z-index:50}.corner{background:url(../images/corner.png) left top no-repeat;height:9px;left:0;position:absolute;top:-9px;width:9px}.count{position:relative;top:8px}.substance{width:500px}
\ No newline at end of file
diff --git a/skins/favourite/footer.ftl b/skins/favourite/footer.ftl
index 9ed8154..53b2838 100644
--- a/skins/favourite/footer.ftl
+++ b/skins/favourite/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="info">
     <div class="copyright">
         <span style="color:white;">&copy; ${year}</span> - <a style="color:white;" href="${servePath}">${blogTitle}</a>${footerContent}<br/>
diff --git a/skins/favourite/header.ftl b/skins/favourite/header.ftl
index c0b4e64..374e230 100644
--- a/skins/favourite/header.ftl
+++ b/skins/favourite/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header">
     <h1 class="title">
         <a href="${servePath}" id="logoTitle" >
diff --git a/skins/favourite/index.ftl b/skins/favourite/index.ftl
index 2d6f2ba..1cb039d 100644
--- a/skins/favourite/index.ftl
+++ b/skins/favourite/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/lang/lang_en_US.properties b/skins/favourite/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/favourite/lang/lang_en_US.properties
+++ b/skins/favourite/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/favourite/lang/lang_zh_CN.properties b/skins/favourite/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/favourite/lang/lang_zh_CN.properties
+++ b/skins/favourite/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/favourite/macro-comments.ftl b/skins/favourite/macro-comments.ftl
index 62282fd..fa4845c 100644
--- a/skins/favourite/macro-comments.ftl
+++ b/skins/favourite/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="comments" id="comments">
     <#list commentList as comment>
diff --git a/skins/favourite/macro-head.ftl b/skins/favourite/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/favourite/macro-head.ftl
+++ b/skins/favourite/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/favourite/nav.ftl b/skins/favourite/nav.ftl
index d15d582..fee479e 100644
--- a/skins/favourite/nav.ftl
+++ b/skins/favourite/nav.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="top">
     <div id="navigation">
         <a rel="nofollow" href="${servePath}" class="home">${homeLabel}</a>
diff --git a/skins/favourite/page.ftl b/skins/favourite/page.ftl
index 919f0bd..f526ccc 100644
--- a/skins/favourite/page.ftl
+++ b/skins/favourite/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/favourite/side.ftl b/skins/favourite/side.ftl
index cde694c..43aae19 100644
--- a/skins/favourite/side.ftl
+++ b/skins/favourite/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="sideNavi" class="side-navi">
     <div class="rings"></div>
     <div class="null"></div>
diff --git a/skins/favourite/skin.properties b/skins/favourite/skin.properties
index f31f081..ec1bb62 100644
--- a/skins/favourite/skin.properties
+++ b/skins/favourite/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/favourite/statistic.ftl b/skins/favourite/statistic.ftl
index a6fc67e..67c671c 100644
--- a/skins/favourite/statistic.ftl
+++ b/skins/favourite/statistic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="left" id="statistic">
     <span>
         ${viewCount1Label}
diff --git a/skins/favourite/tag-articles.ftl b/skins/favourite/tag-articles.ftl
index 5ac0d68..9a28336 100644
--- a/skins/favourite/tag-articles.ftl
+++ b/skins/favourite/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/favourite/tags.ftl b/skins/favourite/tags.ftl
index 2fc1953..0551129 100644
--- a/skins/favourite/tags.ftl
+++ b/skins/favourite/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/archive-articles.ftl b/skins/i-nove/archive-articles.ftl
index f127a01..e79995a 100644
--- a/skins/i-nove/archive-articles.ftl
+++ b/skins/i-nove/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/article-list.ftl b/skins/i-nove/article-list.ftl
index 85816e5..bb95574 100644
--- a/skins/i-nove/article-list.ftl
+++ b/skins/i-nove/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="article">
     <h2 class="article-title">
diff --git a/skins/i-nove/article.ftl b/skins/i-nove/article.ftl
index 0dd8bc4..523d54b 100644
--- a/skins/i-nove/article.ftl
+++ b/skins/i-nove/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/i-nove/author-articles.ftl b/skins/i-nove/author-articles.ftl
index 2d8029c..06bdd7b 100644
--- a/skins/i-nove/author-articles.ftl
+++ b/skins/i-nove/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/category-articles.ftl b/skins/i-nove/category-articles.ftl
index d0128a9..d843568 100644
--- a/skins/i-nove/category-articles.ftl
+++ b/skins/i-nove/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/common-comment.ftl b/skins/i-nove/common-comment.ftl
index fd4ed9f..9540de6 100644
--- a/skins/i-nove/common-comment.ftl
+++ b/skins/i-nove/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="comment-body">
     <div class="comment-panel">
         <div class="left comment-author">
diff --git a/skins/i-nove/css/i-nove.css b/skins/i-nove/css/i-nove.css
index 112ef2b..5316120 100644
--- a/skins/i-nove/css/i-nove.css
+++ b/skins/i-nove/css/i-nove.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin i-nove style
diff --git a/skins/i-nove/css/i-nove.min.css b/skins/i-nove/css/i-nove.min.css
index 432db8b..cd2bd5c 100644
--- a/skins/i-nove/css/i-nove.min.css
+++ b/skins/i-nove/css/i-nove.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";#header-navi,.header{border-bottom:1px solid #A6A6A6}.side-navi .navi-comments li div,.side-navi li{overflow:hidden;text-overflow:ellipsis;-o-text-overflow:ellipsis}.comment-form img,.footer .goTop{cursor:pointer}img{max-width:100%;height:auto}.bg{background:url(../images/bg.jpg) repeat-x #BEC3C6;color:#555}a,a:active,a:link,a:visited{color:#2970A6;text-decoration:none}a:hover{text-decoration:underline}#header-navi li a,#logoTitle,#tagsPanel .tagPanel,.article-title a,.error-panel a{text-decoration:none}h1{font-size:200%}h4{font-size:160%}h5{font-size:12px}.margin5R{margin-right:5px}.margin5{margin:5px}.wrapper{background:url(../images/light.gif) 50% 0 no-repeat;padding:20px 0}.content{margin:0 auto;width:936px}.header{background:url(../images/header.jpg) no-repeat;height:65px;padding:25px 30px 0}.body{background:url(../images/sidesep.gif) right center repeat-y #FFF;min-height:400px}.side-navi{background:url(../images/sidebar_shadow.gif) 50% 0 repeat-x #F7F7F7;font-size:95%;line-height:145%;padding-top:8px;width:300px}.main{background:url(../images/main_shadow.gif) center top repeat-x #FFF;padding:13px 15px 15px;width:605px}.footer{background:url(../images/footer.jpg) no-repeat;border-top:1px solid #CCC;font-size:11px;height:88px;line-height:145%;padding:0}#logoTitle{color:#FFF;display:block;font-family:"Trajan Pro";height:30px;outline:0}.sub-title{border-top:1px solid #FFF;color:#FFF;font-size:10px;padding:0 3px}#header-navi li a,#statistic{font-size:11px;line-height:31px}#header-navi{background:#FFF}.article-title,.comments{border-bottom:1px solid #CCC}#header-navi li{float:left;list-style:none;margin-left:0}#header-navi li a{background:url(../images/menu.gif) no-repeat;color:#382E1F;display:block;height:31px;margin-left:-10px;outline:0;padding:0 20px}#header-navi li a:hover{background-position:0 -31px}#header-navi li a.home{background-position:0 -93px;margin-left:0;padding:0;text-indent:-999em;width:45px}#header-navi li a.home:hover{background-position:0 -124px}#header-navi li a.lastNavi:hover{background-position:0 0}#header-navi li.selected a{background-position:0 -62px}#header-navi li.selected a.home{background-position:0 -155px}#header-navi .page-icon{float:left;height:14px;width:14px;margin:8px 3px 0 0}#statistic{margin-right:15px}.footer .copyright{padding:12px;width:857px}.footer .copyright span{margin:0}.footer .goTop{background:url(../images/icons.gif) 0 -304px no-repeat;color:#2A2A2A;line-height:18px;margin:5px 17px 0 0;padding-left:16px;width:22px;white-space:nowrap}.article{padding-bottom:15px;overflow:hidden}.article-title{font-size:16px;margin-top:10px;padding:0 5px 3px}.article-relative h4,.article-title sup,.comment-content,.comment-form button,.comment-info{font-size:12px}.article-title a{color:#4C4C4C}.article-title a:hover{color:#2970A6}.article-abstract{line-height:145%;margin:10px 0 10px 5px;word-wrap:break-word}.article-browserIcon,.articles-commentIcon,.authorIcon,.dateIcon,.tagsIcon{background:url(../images/icons.gif) 0 -400px no-repeat;float:left;height:16px;margin-right:6px;width:16px}.tagsIcon{background-position:0 -400px;margin-left:15px}.dateIcon{background-position:0 -48px;margin-left:15px}.authorIcon{background-position:0 0}.articles-commentIcon{background-position:0 -96px}.article-browserIcon{background-position:0 -480px}.article-body{line-height:145%;padding:5px 0 0 5px}.article-footer{margin:0 5px 10px}.article-relative{line-height:22px;margin-top:24px}.comments{background:#FCFCFC;border-top:1px solid #CCC;margin:15px -15px;padding:0 15px 15px;position:relative}.comment-title{background-color:#E3E9FF;border-top:1px solid #36C;padding:3px 12px;position:relative}.comment-body-ref{background-color:#FFF;filter:alpha(opacity=90);left:217px;opacity:.9;padding:6px;position:absolute;width:605px;z-index:10}.comment-body{margin-top:15px}.comment-author{float:left;text-align:center;width:81px}.comment-author div{background:url(../images/commentpoint.png) 100% 33% no-repeat;margin-top:10px;padding-right:14px}.comment-author img{border:1px solid #999;height:32px;padding:1px;width:32px}.comment-author a{font-weight:700;white-space:nowrap;margin-right:14px}.comment-info{background:url(../images/comment.gif) no-repeat #EDEFF0;padding:10px 15px 0;width:494px}.comment-content{background:url(../images/comment.gif) 100% 100% no-repeat;line-height:145%;margin:0 -15px;overflow:hidden;padding:9px 15px 10px;word-wrap:break-word}.comment-form input,.comment-form textarea{background:url(../images/textfield.gif) 50% 0 repeat-x #FFF;border:1px solid #A6A6A6;color:#555;font-family:Helvetica,Arial,sans-serif;height:16px;outline:0;padding:2px 1px;width:200px}.comment-form textarea{font-size:12px;height:auto;width:601px}.comment-form button{background:#B4D666;border-color:#B4D666 #81B840 #81B840 #B4D666;border-radius:0;border-style:solid;border-width:1px;color:#2970A6;height:24px;line-height:24px;padding:0 6px}.comment-form button:hover{background:#98C64C;border-color:#76B33A #98C64C #98C64C #76B33A;color:#074A7E}.error-msg{color:#36C}.side-navi ul{list-style:none;margin-top:10px}.side-navi .item{padding:15px}.side-navi sup{margin-right:3px;color:#555}.side-navi .navi-comments li>img{border:1px solid #999;height:32px;margin-right:7px;padding:1px;width:32px}.side-navi .navi-comments a{font-weight:700}.side-navi .navi-comments .side-comment{color:#555;font-weight:400;height:18px}.side-navi .navi-comments div.left>div>div{display:none}.side-navi .navi-comments .side-comment img{border:0;height:16px;margin-right:0;padding:0;width:16px}.side-navi .navi-comments li{padding:2px 0}.side-navi .navi-comments li div{width:227px}.side-navi a.selected{color:#555;text-decoration:none}.side-navi .navi-comments li,.side-navi ul.navi-tags li{background-image:none;padding-left:0}.side-navi ul.navi-tags li img{height:16px;padding-right:6px;width:16px}.side-navi li{background:url(../images/icons.gif) 0 -623px no-repeat;margin:5px 0 0;padding-left:20px;white-space:nowrap}.side-navi li.aboutMe{white-space:normal}.side-navi .line{background:url(../images/widgetsep.png) center bottom no-repeat;height:6px;width:300px}.pagination{margin:16px;text-align:center}.pagination a,.pagination a:visited{color:#4272DB;padding:0 3px}.error-panel a,.pagination a.selected{color:#000;font-weight:700}#tagsPanel .tagPanel{border:2px solid;border-radius:6px;cursor:pointer;float:left;margin:3px}#tagsPanel .tagPanel:hover{background-color:#EEE;border:2px dashed}.error-body{background:url(../images/main_shadow.gif) center top repeat-x #FFF;height:400px;padding:12px}.error-title{line-height:72px}.error-panel{margin-left:35px;width:201px}.error-panel a{background-color:#9CD941;border-color:#D0F29D #398A38 #398A38 #D0F29D;border-style:solid;border-width:1px;font-size:14px;margin-right:3px;padding:10px 15px}.error-panel a:hover{background-color:#ADEb51}.kind-panel{background:url(../images/box.gif) 100% 100% no-repeat #F4F5F7;margin-bottom:10px;padding:8px 12px}.kind-title{background:url(../images/box.gif) no-repeat #E3E4E6;border-bottom:1px solid #CCC;font-weight:700;padding:6px 12px}
\ No newline at end of file
diff --git a/skins/i-nove/footer.ftl b/skins/i-nove/footer.ftl
index 884cb19..c7ec646 100644
--- a/skins/i-nove/footer.ftl
+++ b/skins/i-nove/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="left copyright">
     <span style="color: gray;">&copy; ${year}</span> - <a href="${servePath}">${blogTitle}</a>${footerContent}<br/>
     Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}&nbsp;&nbsp;
diff --git a/skins/i-nove/header.ftl b/skins/i-nove/header.ftl
index df1eba8..a2fba82 100644
--- a/skins/i-nove/header.ftl
+++ b/skins/i-nove/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header">
     <h1 class="title">
         <a href="${servePath}" id="logoTitle" >
diff --git a/skins/i-nove/index.ftl b/skins/i-nove/index.ftl
index d6a7d90..a683017 100644
--- a/skins/i-nove/index.ftl
+++ b/skins/i-nove/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/lang/lang_en_US.properties b/skins/i-nove/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/i-nove/lang/lang_en_US.properties
+++ b/skins/i-nove/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/i-nove/lang/lang_zh_CN.properties b/skins/i-nove/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/i-nove/lang/lang_zh_CN.properties
+++ b/skins/i-nove/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/i-nove/macro-comments.ftl b/skins/i-nove/macro-comments.ftl
index 158fcf9..3b7b131 100644
--- a/skins/i-nove/macro-comments.ftl
+++ b/skins/i-nove/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="comments" id="comments">
     <#list commentList as comment>
diff --git a/skins/i-nove/macro-head.ftl b/skins/i-nove/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/i-nove/macro-head.ftl
+++ b/skins/i-nove/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/i-nove/page.ftl b/skins/i-nove/page.ftl
index 3d8ac5d..ca9d7f2 100644
--- a/skins/i-nove/page.ftl
+++ b/skins/i-nove/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/i-nove/side.ftl b/skins/i-nove/side.ftl
index e9861d1..d24f1d8 100644
--- a/skins/i-nove/side.ftl
+++ b/skins/i-nove/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="sideNavi" class="side-navi">
     <#if "" != noticeBoard>
     <div class="item">
diff --git a/skins/i-nove/skin.properties b/skins/i-nove/skin.properties
index 0e489d3..667bc42 100644
--- a/skins/i-nove/skin.properties
+++ b/skins/i-nove/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/i-nove/tag-articles.ftl b/skins/i-nove/tag-articles.ftl
index c654ab8..57ad5a1 100644
--- a/skins/i-nove/tag-articles.ftl
+++ b/skins/i-nove/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/i-nove/tags.ftl b/skins/i-nove/tags.ftl
index 289d2a0..1a8c434 100644
--- a/skins/i-nove/tags.ftl
+++ b/skins/i-nove/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/metro-hot/archive-articles.ftl b/skins/metro-hot/archive-articles.ftl
index 242ac65..fc47f86 100644
--- a/skins/metro-hot/archive-articles.ftl
+++ b/skins/metro-hot/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/archives.ftl b/skins/metro-hot/archives.ftl
index 9ed1666..cd7f93f 100644
--- a/skins/metro-hot/archives.ftl
+++ b/skins/metro-hot/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/article-list.ftl b/skins/metro-hot/article-list.ftl
index 3475619..72732db 100644
--- a/skins/metro-hot/article-list.ftl
+++ b/skins/metro-hot/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="article-list fn-clear">
     <#list articles as article>
     <div>
diff --git a/skins/metro-hot/article.ftl b/skins/metro-hot/article.ftl
index 6b6897a..adbf527 100644
--- a/skins/metro-hot/article.ftl
+++ b/skins/metro-hot/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <#include "macro-side.ftl">
diff --git a/skins/metro-hot/author-articles.ftl b/skins/metro-hot/author-articles.ftl
index e4bff27..b712c56 100644
--- a/skins/metro-hot/author-articles.ftl
+++ b/skins/metro-hot/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/category-articles.ftl b/skins/metro-hot/category-articles.ftl
index d084b18..3fd6f33 100644
--- a/skins/metro-hot/category-articles.ftl
+++ b/skins/metro-hot/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/category.ftl b/skins/metro-hot/category.ftl
index caa1e0a..42f0c65 100644
--- a/skins/metro-hot/category.ftl
+++ b/skins/metro-hot/category.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/common-comment.ftl b/skins/metro-hot/common-comment.ftl
index ee3dab4..e9c9549 100644
--- a/skins/metro-hot/common-comment.ftl
+++ b/skins/metro-hot/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="fn-clear">
     <img title="${comment.commentName}"
          alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
diff --git a/skins/metro-hot/copyright.ftl b/skins/metro-hot/copyright.ftl
index d1fdb92..937de3d 100644
--- a/skins/metro-hot/copyright.ftl
+++ b/skins/metro-hot/copyright.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer">
     <span class="ft-gray">&copy; ${year}</span> -
     <a href="${servePath}">${blogTitle}</a>${footerContent} Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}&nbsp;&nbsp;
diff --git a/skins/metro-hot/css/metro-hot-responsive.css b/skins/metro-hot/css/metro-hot-responsive.css
index 8ffe056..63fc65c 100644
--- a/skins/metro-hot/css/metro-hot-responsive.css
+++ b/skins/metro-hot/css/metro-hot-responsive.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 /*
 * skin metro-hot responsive style
 *
diff --git a/skins/metro-hot/css/metro-hot-responsive.min.css b/skins/metro-hot/css/metro-hot-responsive.min.css
index 9309348..0744e2b 100644
--- a/skins/metro-hot/css/metro-hot-responsive.min.css
+++ b/skins/metro-hot/css/metro-hot-responsive.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @media (max-width:860px) and (min-width:460px){.wrapper{width:720px}.main{width:460px}.form{width:auto}.form input{width:395px}.form textarea{width:434px}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{margin-right:4px}#comments .article-body{width:340px}#dynamic #comments .article-body{width:283px}.most-comment,.most-view{width:300px;margin-bottom:20px;margin-top:40px}.most-comment .text,.most-view .text{width:195px}.archives-tile,.links-tile,.tags-tile{width:670px}.archives-tile .text,.links-tile .text,.tags-tile .text{width:580px}.links-tile,.tags-tile{margin-left:0}}@media (max-width:460px){#comments>div,.archives,.comment-disabled,.main .pagination,.main>.article-body{margin-right:0}.comment-main,.header>.fn-left,.side,.top-info{float:none}.article-list>div,.main,.side,.wrapper{width:300px}#comments>div>img,#emotions,.footer,.sub-nav>.pagination{display:none}#search{width:237px}.side-tile{width:94px}.article-relative,.notice-board,.online-count,.share,.user{width:249px}#comments .article-body,.side>div{position:static!important;width:auto!important}.share div.text{left:173px}.form{width:auto}.form input{width:240px}.form textarea{width:285px;height:150px}#dynamic .main{margin-bottom:20px}.tags-tile{margin-bottom:50px}.article-title{width:280px}.article-info>a{padding:3px;font-size:12px}#dynamic #comments{padding-left:15px}.links-tile .title,.most-comment .title,.most-view .title,.tags-tile .title{float:right;font-size:15px;font-weight:700;margin:20px 0 0 40px}.most-comment,.most-view{width:249px;margin-left:0}.most-comment .text,.most-view .text{margin-right:0;width:274px;font-size:12px;font-weight:400}.links-tile,.tags-tile{width:249px;margin-left:0}.links-tile .text,.tags-tile .text{width:249px}}
\ No newline at end of file
diff --git a/skins/metro-hot/css/metro-hot.css b/skins/metro-hot/css/metro-hot.css
index 9200a9e..24f856e 100644
--- a/skins/metro-hot/css/metro-hot.css
+++ b/skins/metro-hot/css/metro-hot.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
 * skin metro-hot style
diff --git a/skins/metro-hot/css/metro-hot.min.css b/skins/metro-hot/css/metro-hot.min.css
index 58c3442..1a7d930 100644
--- a/skins/metro-hot/css/metro-hot.min.css
+++ b/skins/metro-hot/css/metro-hot.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";.header,sub,sup{position:relative}.article-title,.fn-ellipsis{text-overflow:ellipsis;white-space:nowrap}@font-face{font-family:IcoMoon;src:url(font/IcoMoon.eot);src:url(font/IcoMoon.eot?#iefix) format('embedded-opentype'),url(font/IcoMoon.svg#IcoMoon) format('svg'),url(font/IcoMoon.woff) format('woff'),url(font/IcoMoon.ttf) format('truetype');font-weight:400;font-style:normal}[data-ico]:before{font-family:IcoMoon;content:attr(data-ico);speak:none;cursor:pointer}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{font-family:Verdana,arial,'\5fae\8f6f\96c5\9ed1';font-size:12px;background-color:#292929;min-height:1990px;margin:0;color:#D1D2D1}a{outline:0;text-decoration:none;color:#BDBEBD}a:hover{color:#FFF}a:focus{color:#9E0B0E!important}sub,sup{font-size:70%;line-height:0;vertical-align:baseline}sup{top:-.5em}sub{bottom:-.25em}img{max-width:100%;vertical-align:middle;border:0;-ms-interpolation-mode:bicubic}button,input,select,textarea{margin:0;font-size:100%;vertical-align:middle;font-family:'\5fae\8f6f\96c5\9ed1';outline:0}button,input{line-height:normal}button::-moz-focus-inner,input::-moz-focus-inner{padding:0;border:0}button,input[type=button],input[type=reset],input[type=submit]{cursor:pointer;-webkit-appearance:button}input[type=search]{-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box;-webkit-appearance:textfield}input[type=search]::-webkit-search-cancel-button,input[type=search]::-webkit-search-decoration{-webkit-appearance:none}textarea{overflow:auto;vertical-align:top}::selection{background-color:#D5D5D5;color:#FCFCFC}::-moz-selection{background-color:#D5D5D5;color:#FCFCFC}.fn-clear:after,.fn-clear:before{display:table;content:""}.fn-clear:after{clear:both}.fn-left{float:left}.fn-right{float:right}.fn-none{display:none}.fn-ellipsis{overflow:hidden;word-wrap:normal}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:8px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 1px}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.article-abstract .article-tags a:hover,.article-abstract .article-title a:hover,.article-body a,.article-relative a:hover,.footer a:hover{text-decoration:underline}.article-body a:hover{text-decoration:none}.wrapper{height:auto;margin:30px auto 10px;width:1190px}.footer{background-color:#141414;color:#FFF;padding:30px;margin-right:10px}.main{float:left;width:920px}.header .title{color:#E61E1E;padding:30px 0}.header .title:hover{color:#CA1B1E}.header .title>span:before{color:inherit}.top-info{font-size:38px;height:46px;line-height:46px}.top-info>hr{background-color:#7B7B7B;border:0;display:inline-block;height:42px;margin:2px 10px;padding:0;vertical-align:top;width:1px}#showTop,.navigation{display:none}.top-info a{color:#FFF}.top-info a:hover{color:#CA1B1E}.sub-nav{background-color:#E61E1E;color:#FFF;padding:30px;margin:30px 0}.sub-nav>h2{float:left;margin:0}.pagination{float:right;margin-top:5px}.pagination>a,.pagination>span{background-color:#EA4040;color:#FFF;padding:6px 7px;text-align:center;font-weight:700}.pagination>a:hover,.pagination>span{color:#E61E1E;background-color:#FFF}.navigation{background-color:#FFF;border:2px solid #BABABA;left:0;list-style:none;margin:0;min-width:223px;padding:0;position:absolute;top:63px;z-index:1}.navigation a{background-color:#FFF;border-bottom:1px solid #BABABA;color:#333;display:block;padding:10px 15px}.navigation a:hover{background-color:#E61E1E;color:#FFF}.navigation a.lats{border-bottom-width:0}.navigation .page-icon{float:left;height:14px;width:14px;margin:2px 5px 0 0}.main .pagination{float:none;padding:20px 0 25px;text-align:right;margin-right:10px;line-height:34px}.article-list>div{background-color:#323232;float:left;height:220px;margin:5px 10px 5px 0;overflow:hidden;position:relative;width:450px}.article-abstract{background-color:#3E3E3E;opacity:.9;filter:alpha(opacity=90);position:absolute;top:0;width:100%;transition:all 1.2s;height:100%}.article-image{top:151px}.article-list>div:hover .article-image{top:0}.article-list>div>img{max-width:100%;transition:all 1.2s;display:block;margin:0 auto}.article-list>div:hover>img{transform:scale(1.2)}.article-date{float:left;margin:10px}.article-title{height:24px;line-height:24px;margin:0 10px;overflow:hidden;width:430px;font-weight:400}.article-title span{color:#E61E1E}.article-title a{color:#F8F7F7}.article-title sup{color:#9E0B0E}.article-abstract .fn-right{display:none;position:absolute;right:0}.article-abstract:hover .fn-right{display:block}.article-abstract .fn-right>a{background-color:#FFF;color:#E61E1E;float:left;padding:10px;transition:all .8s}#search,.side-tile{transition:all .3s ease-out 0s}.article-abstract .fn-right>a:hover{color:#FFF;background-color:#E61E1E}.article-abstract>.article-tags{margin:10px 0 0 10px}.article-abstract>.article-body{margin:10px;overflow:hidden;white-space:inherit;word-wrap:break-word;padding:10px;height:95px}#search,.side form>span{background-color:#FFF;color:#3A3A3A;margin-top:5px}.side{float:right;width:240px}#search{border:0;height:50px;padding:0 10px;width:177px}.side form>span{float:right;font-size:25px;height:32px;padding:9px}.side-tile,.side-tile>.text a{color:#FFF}.side-tile{float:left;margin-top:20px;padding:15px 25px;position:relative;background-color:#F09609;width:65px}.archives a,.article-info>a{transition:all .8s;float:left}#dynamic .footer:hover,.form button:hover,.form input:focus,.form textarea:focus,.side form input:focus,.side-tile:hover{outline:#BABABA solid 3px}.side-tile>span{display:block;font-size:60px;text-align:center;width:60px}.side-tile>.title{line-height:17px}.side-tile>.text{font-size:15px;font-weight:700;left:93px;line-height:30px;position:absolute;top:20px}.article-relative,.notice-board,.online-count,.share,.user{width:188px}.logout,.prev,.prev-disabled,.register,.translate{margin-left:10px}.translate{background-color:#2E8BCC}.login,.settings{background-color:#008641}.logout,.register{background-color:#7B4F9D}.next,.prev{background-color:#E61E1E}.next-disabled,.prev-disabled{color:#BDBEBD;background-color:#EA4040}.user{background-color:#393}.user img{margin:0 10px 10px 0;height:60px;width:60px}.online-count,.share{background-color:#20608E}.share div.text{color:#BDBEBD;font-size:43px;font-weight:400;left:128px;line-height:54px;top:5px;width:105px}.share .text span:hover{color:#FFF}.article-relative .text,.online-count .text{font-size:12px;font-weight:400;left:104px;line-height:19px;text-align:left;top:12px}.article-relative .text{left:70px;overflow:hidden;top:10px;white-space:nowrap;width:158px;word-break:keep-all}.article-relative .text ul{margin:0}.notice-board{background-color:#2E8BCC;overflow:hidden;height:auto}.notice-board .text,.user .text{top:36px}#goCmt,#goTop{background-color:#141414;bottom:10px;font-size:30px;height:35px;padding:5px 7px;position:fixed;right:30px;width:30px;z-index:10}#goCmt{bottom:55px}.archives{background-color:#323232;padding:10px;margin:5px 10px 30px 0}.archives li{list-style:none;float:left}.archives a{background-color:#E61E1E;color:#FFF;line-height:15px;margin:10px;padding:10px 15px;white-space:nowrap}.archives a:hover{background-color:#FFF;color:#E61E1E}.article-header{background-color:#E61E1E;margin:30px 0;padding:20px 30px;position:relative}.article-info{position:absolute;right:0;top:0}.article-info>a{background-color:#FFF;color:#E61E1E;font-size:14px;padding:14px;border-bottom:1px solid #FFF;border-left:1px solid #FFF}#dynamic .footer,.form button,.form input,.form textarea{transition:all .3s ease-out 0s}.article-info>a:hover{background-color:#E61E1E;color:#FFF}.article-header h2{color:#FFF}.article-header h2>span{font-weight:400;color:#D1D2D1}.article-header .article-date{float:none;margin:0}.article-body{background-color:#323232;margin-bottom:30px;overflow:hidden;padding:10px;white-space:normal;word-break:break-all;font-size:14px;word-wrap:break-word}.at,.form button{font-size:15px;color:#FFF}.main>.article-body{margin-right:10px;margin-top:20px}pre.prettyprint{background-color:#F7F7F7}#comments{position:relative}#comments>div{margin-bottom:20px;margin-right:10px}#comments>div.fn-clear>img{width:80px}#comments .article-body{margin:10px 0;width:800px}#comments .user-name{color:#E61E1E;font-weight:700}#comments .user-name:hover{color:#CA1B1E}.comment-info a{color:#F8F7F7}.at{font-weight:700}.comment-main{float:right}.comment-body-ref{background-color:#EA4040;left:79px;padding:10px;position:absolute;width:900px;z-index:1}.comment-disabled{background-color:#EA4040;color:#FFF;margin:0 10px 30px 0;padding:5px 20px}.form{width:600px;margin-bottom:30px}.form input,.form textarea{height:30px;margin:5px 10px 5px 0;padding:0 5px;width:456px}.form textarea{width:600px;height:300px;margin:0 0 10px}.form button{background-color:#E61E1E;border:0;cursor:pointer;padding:10px 50px}.tip{color:#CA1B1E}#dynamic #comments{background-color:#EA4040;margin-top:5px;padding:25px 15px 15px 25px}#dynamic #comments .article-body{width:743px}#dynamic .article-relative .text{left:110px}#dynamic .footer{margin:20px 0 10px;float:left}.links-tile,.most-comment,.most-view,.tags-tile{position:static;background-color:#F09609;width:535px;margin-top:20px}.most-view{margin-left:20px;background-color:#2E8BCC}.tags-tile{margin-left:20px;background-color:#393}.links-tile{background-color:#7B4F9D}.links-tile span,.most-comment span,.most-view span,.tags-tile span{font-size:60px}.links-tile .text,.most-comment .text,.most-view .text,.tags-tile .text{position:static;width:430px}.links-tile a,.tags-tile a{background-color:#EA4040;color:#D1D2D1;float:left;font-size:12px;line-height:20px;margin:6px;padding:5px 10px;transition:all .8s ease 0s;white-space:nowrap}.links-tile a:hover,.tags-tile a:hover{background-color:#FFF;color:#EA4040}.most-comment .text,.most-view .text{margin-right:20px;line-height:24px}.most-comment .text a:hover,.most-view .text a:hover{text-decoration:underline}.most-comment .text span,.most-view .text span{color:#D1D2D1;font-size:13px;font-weight:400}
\ No newline at end of file
diff --git a/skins/metro-hot/dynamic.ftl b/skins/metro-hot/dynamic.ftl
index 9f9a47e..ba60b89 100644
--- a/skins/metro-hot/dynamic.ftl
+++ b/skins/metro-hot/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/metro-hot/footer.ftl b/skins/metro-hot/footer.ftl
index 6df1afc..d660d5c 100644
--- a/skins/metro-hot/footer.ftl
+++ b/skins/metro-hot/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <script type="text/javascript">
     var latkeConfig = {
         "servePath": "${servePath}",
diff --git a/skins/metro-hot/header.ftl b/skins/metro-hot/header.ftl
index f4d7780..59b6771 100644
--- a/skins/metro-hot/header.ftl
+++ b/skins/metro-hot/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="fn-clear header">
     <h1 class="fn-left">
         <a class="title" href="javascript: void(0)">
diff --git a/skins/metro-hot/index.ftl b/skins/metro-hot/index.ftl
index a9898da..3f15b1b 100644
--- a/skins/metro-hot/index.ftl
+++ b/skins/metro-hot/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/js/metro-hot.js b/skins/metro-hot/js/metro-hot.js
index 3040e23..38c028c 100644
--- a/skins/metro-hot/js/metro-hot.js
+++ b/skins/metro-hot/js/metro-hot.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview metro-hot js.
diff --git a/skins/metro-hot/js/metro-hot.min.js b/skins/metro-hot/js/metro-hot.min.js
index c472f8e..cc8efd7 100644
--- a/skins/metro-hot/js/metro-hot.min.js
+++ b/skins/metro-hot/js/metro-hot.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var MetroHot={headerH:$("#header").height()+30+($("#header > div").get(1)?30:0),responsiveType:"large",goTranslate:function(){window.open("http://translate.google.com/translate?sl=auto&tl=auto&u="+location.href)},init:function(){var t="";$("#admin a").each(function(){$(this).attr("href").indexOf("/logout?goto=")>-1&&(t=$(this).attr("href"))}),$("#logout, .logout").attr("href",t),$(".header .title, .navigation").mouseover(function(){$(".navigation").show()}).mouseout(function(){$(".navigation").hide()}),$(".header .title").click(function(){window.location.href=latkeConfig.servePath});var e=$("#top > span").first().text();$(".online-count .text").append(e.substr(1,e.length));var i=$("#admin").data("login");if(i?($(".user .text").html($("#admin > span").text()),$(".login, .register, #login, #register, .logout, .settings").hide()):$(".login, .register, .user, .clear, .logout, .settings, #logout, #settings").hide(),1===$("#dynamic").length)return $(window).scroll(function(){$(window).scrollTop()>MetroHot.headerH?$("#goTop").fadeIn("slow"):$("#goTop").hide()}).click(function(t){"title"!==t.target.className&&"title"!==t.target.parentElement.className&&$(".navigation").slideUp()}),void $("body").css("min-height","inherit");$("#login, .login").attr("href",$("#admin > a").first().attr("href")),$(window).scroll(function(){var t=$(window).scrollTop();t>MetroHot.headerH?i?$(".logout, .settings").show():$(".login, .register").show():i?$(".logout, .settings").hide():$(".login, .register").hide(),t>MetroHot.headerH?$("#goTop").fadeIn("slow"):$("#goTop").hide(),$(".side > div").height()<620?t>MetroHot.headerH?$(".side > div").css({position:"fixed",top:"0px",width:"240px"}):$(".side > div").css("position","static"):t+Util.getWinHeight()>$(".side > div").height()+MetroHot.headerH?$(".side > div").css({position:"fixed",top:"auto",bottom:"10px",width:"240px"}):$(".side > div").css("position","static")}).click(function(t){"title"!==t.target.className&&"title"!==t.target.parentElement.className&&$(".navigation").slideUp()}).resize(function(){var t=window.innerWidth,e="large";t>460&&t<=860?e="mid":window<460&&(e="small"),MetroHot.responsiveType!==e&&($(window).scroll(),MetroHot.responsiveType)}),$(window).scroll()},initArticleList:function(){$(".article-list .article-abstract").each(function(){var t=$(this),e=t.find("img");e.length>0&&(t.addClass("article-image"),e.hide(),t.before("<img onload='MetroHot.loadImg(this);' src='"+$(e[0]).attr("src")+"'/>"))})},loadImg:function(t){t.style.marginTop=(220-t.height)/2+"px"},share:function(){var t=encodeURIComponent($("title").text()),e=window.location.href,i=$(".article-body img").attr("src"),o={};o.tencent="http://share.v.t.qq.com/index.php?c=share&a=index&title="+t+"&url="+e+"&pic="+i,o.sina="http://v.t.sina.com.cn/share/share.php?title="+t+"&url="+e+"&pic="+i,o.google="https://plus.google.com/share?url="+e,o.twitter="https://twitter.com/intent/tweet?status="+t+" "+e,$(".share span").click(function(){var t=$(this).attr("title").toLowerCase();window.open(o[t],"_blank","top=100,left=200,width=648,height=618")})},loadRandomArticles:function(){$.ajax({url:latkeConfig.servePath+"/get-random-articles.do",type:"POST",success:function(t,e){var i=t.randomArticles;if(!i||0===i.length)return void $("#randomArticles").remove();for(var o="",r=0;r<i.length&&r<5;r++){var a=i[r],n=a.articleTitle;o+="<li><a rel='nofollow' title='"+n+"' href='"+latkeConfig.servePath+a.articlePermalink+"'>"+n+"</a></li>"}var l="<ul>"+o+"</ul>";$("#randomArticles .text").append(l)}})},loadRelevantArticles:function(t){$.ajax({url:latkeConfig.servePath+"/article/id/"+t+"/relevant/articles",type:"GET",success:function(t,e){var i=t.relevantArticles;if(!i||0===i.length)return void $("#relevantArticles").remove();for(var o="",r=0;r<i.length&&r<5;r++){var a=i[r],n=a.articleTitle;o+="<li><a rel='nofollow' title='"+n+"' href='"+latkeConfig.servePath+a.articlePermalink+"'>"+n+"</a></li>"}var l="<ul>"+o+"</ul>";$("#relevantArticles .text").append(l)},error:function(){$("#relevantArticles").remove()}})},loadExternalRelevantArticles:function(t){var e=this.tips;try{$.ajax({url:"http://rhythm.b3log.org:80/get-articles-by-tags.do?tags="+t+"&blogHost="+e.blogHost+"&paginationPageSize="+e.externalRelevantArticlesDisplayCount,type:"GET",cache:!0,dataType:"jsonp",error:function(){$("#externalRelevantArticles").remove()},success:function(t,e){var i=t.articles;if(!i||0===i.length)return void $("#externalRelevantArticles").remove();for(var o="",r=0;r<i.length&&r<5;r++){var a=i[r],n=a.articleTitle;o+="<li><a rel='nofollow' title='"+n+"' target='_blank' href='"+a.articlePermalink+"'>"+n+"</a></li>"}var l="<ul>"+o+"</ul>";$("#externalRelevantArticles .text").append(l)}})}catch(t){$("#externalRelevantArticles").remove()}},goCmt:function(){$("html, body").animate({scrollTop:$(".comment-disabled").get(0).offsetTop})}};!function(){MetroHot.init(),Util.killIE(),$(".article-header").length>0?MetroHot.share():MetroHot.initArticleList()}();
\ No newline at end of file
diff --git a/skins/metro-hot/lang/lang_en_US.properties b/skins/metro-hot/lang/lang_en_US.properties
index 6f87ed1..b67ddac 100644
--- a/skins/metro-hot/lang/lang_en_US.properties
+++ b/skins/metro-hot/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/metro-hot/lang/lang_zh_CN.properties b/skins/metro-hot/lang/lang_zh_CN.properties
index 81120d6..e534880 100644
--- a/skins/metro-hot/lang/lang_zh_CN.properties
+++ b/skins/metro-hot/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/metro-hot/links.ftl b/skins/metro-hot/links.ftl
index 12f7b2b..c3e4c50 100644
--- a/skins/metro-hot/links.ftl
+++ b/skins/metro-hot/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/macro-comments.ftl b/skins/metro-hot/macro-comments.ftl
index 815d822..afc4124 100644
--- a/skins/metro-hot/macro-comments.ftl
+++ b/skins/metro-hot/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <#if article.commentable>
 <div class="comment-disabled">
diff --git a/skins/metro-hot/macro-head.ftl b/skins/metro-hot/macro-head.ftl
index b389af5..5490889 100644
--- a/skins/metro-hot/macro-head.ftl
+++ b/skins/metro-hot/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
diff --git a/skins/metro-hot/macro-side.ftl b/skins/metro-hot/macro-side.ftl
index 36395b1..c4af530 100644
--- a/skins/metro-hot/macro-side.ftl
+++ b/skins/metro-hot/macro-side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro side isArticle>
 <div class="side">
     <div class="fn-clear">
diff --git a/skins/metro-hot/page.ftl b/skins/metro-hot/page.ftl
index a120cad..b04fd6d 100644
--- a/skins/metro-hot/page.ftl
+++ b/skins/metro-hot/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <#include "macro-comments.ftl">
diff --git a/skins/metro-hot/skin.properties b/skins/metro-hot/skin.properties
index f04a570..aa9c54c 100644
--- a/skins/metro-hot/skin.properties
+++ b/skins/metro-hot/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/metro-hot/tag-articles.ftl b/skins/metro-hot/tag-articles.ftl
index d55bd40..89b0751 100644
--- a/skins/metro-hot/tag-articles.ftl
+++ b/skins/metro-hot/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/metro-hot/tags.ftl b/skins/metro-hot/tags.ftl
index 997afba..a97c4bd 100644
--- a/skins/metro-hot/tags.ftl
+++ b/skins/metro-hot/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-side.ftl">
 <!DOCTYPE html>
diff --git a/skins/mobile/archive-articles.ftl b/skins/mobile/archive-articles.ftl
index 093c311..fb5f86b 100644
--- a/skins/mobile/archive-articles.ftl
+++ b/skins/mobile/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/mobile/article-list.ftl b/skins/mobile/article-list.ftl
index 2f5bbf4..d382de3 100644
--- a/skins/mobile/article-list.ftl
+++ b/skins/mobile/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="content">
 	<div class="result-text"><!--TODO wptouch_core_body_result_text()--></div>
     <#list articles as article>
diff --git a/skins/mobile/article.ftl b/skins/mobile/article.ftl
index 4c91db6..497c6ec 100644
--- a/skins/mobile/article.ftl
+++ b/skins/mobile/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/mobile/author-articles.ftl b/skins/mobile/author-articles.ftl
index e13bbb2..628427f 100644
--- a/skins/mobile/author-articles.ftl
+++ b/skins/mobile/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/mobile/category-articles.ftl b/skins/mobile/category-articles.ftl
index f37ccd5..eb32c41 100644
--- a/skins/mobile/category-articles.ftl
+++ b/skins/mobile/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/mobile/common-comment.ftl b/skins/mobile/common-comment.ftl
index 08443c5..4a57f16 100644
--- a/skins/mobile/common-comment.ftl
+++ b/skins/mobile/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}">
     <div class="comwrap">
         <div class="comtop"><!--TODO comment->comment_approved == '0') : comtop preview;-->
diff --git a/skins/mobile/footer.ftl b/skins/mobile/footer.ftl
index a3c0d83..696a072 100644
--- a/skins/mobile/footer.ftl
+++ b/skins/mobile/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <!-- Here we're establishing whether the page was loaded via Ajax or not, for dynamic purposes. If it's ajax, we're not bringing in footer.php -->
 <div id="footer">
     <center>
diff --git a/skins/mobile/header.ftl b/skins/mobile/header.ftl
index a5f6769..d384d0a 100644
--- a/skins/mobile/header.ftl
+++ b/skins/mobile/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <!--TODO i18n-->
 <!-- New noscript check, we need js on now folks -->
 <noscript>
diff --git a/skins/mobile/index.ftl b/skins/mobile/index.ftl
index 42c0591..c7d3738 100644
--- a/skins/mobile/index.ftl
+++ b/skins/mobile/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/mobile/js/l10n.js b/skins/mobile/js/l10n.js
index d799058..eb3ffb7 100644
--- a/skins/mobile/js/l10n.js
+++ b/skins/mobile/js/l10n.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 function convertEntities(b){var d,a;d=function(c){if(/&[^;]+;/.test(c)){var f=document.createElement("div");f.innerHTML=c;return !f.firstChild?c:f.firstChild.nodeValue}return c};if(typeof b==="string"){return d(b)}else{if(typeof b==="object"){for(a in b){if(typeof b[a]==="string"){b[a]=d(b[a])}}}}return b};
\ No newline at end of file
diff --git a/skins/mobile/js/l10n.min.js b/skins/mobile/js/l10n.min.js
index 7b5a2bd..cf6d890 100644
--- a/skins/mobile/js/l10n.min.js
+++ b/skins/mobile/js/l10n.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 function convertEntities(t){var e,n;if(e=function(t){if(/&[^;]+;/.test(t)){var e=document.createElement("div");return e.innerHTML=t,e.firstChild?e.firstChild.nodeValue:t}return t},"string"==typeof t)return e(t);if("object"==typeof t)for(n in t)"string"==typeof t[n]&&(t[n]=e(t[n]));return t}
\ No newline at end of file
diff --git a/skins/mobile/lang/lang_en_US.properties b/skins/mobile/lang/lang_en_US.properties
index e039551..9537013 100644
--- a/skins/mobile/lang/lang_en_US.properties
+++ b/skins/mobile/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/mobile/lang/lang_zh_CN.properties b/skins/mobile/lang/lang_zh_CN.properties
index b7b3986..f2d1aea 100644
--- a/skins/mobile/lang/lang_zh_CN.properties
+++ b/skins/mobile/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/mobile/macro-comments.ftl b/skins/mobile/macro-comments.ftl
index 9d4673a..e7f583f 100644
--- a/skins/mobile/macro-comments.ftl
+++ b/skins/mobile/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <!-- Let's rock the comments -->
 <!-- You can start editing below here... but make a backup first!  -->
diff --git a/skins/mobile/macro-head.ftl b/skins/mobile/macro-head.ftl
index 4c6dd8e..dad841a 100644
--- a/skins/mobile/macro-head.ftl
+++ b/skins/mobile/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/mobile/page.ftl b/skins/mobile/page.ftl
index ae8316c..d08b4d0 100644
--- a/skins/mobile/page.ftl
+++ b/skins/mobile/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/mobile/side.ftl b/skins/mobile/side.ftl
index fb618ae..fb82fe3 100644
--- a/skins/mobile/side.ftl
+++ b/skins/mobile/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="sideNavi" class="side-navi">
     <#if "" != noticeBoard>
     <ul class="marginTop12">
diff --git a/skins/mobile/skin.properties b/skins/mobile/skin.properties
index 92f7797..c9e1e88 100644
--- a/skins/mobile/skin.properties
+++ b/skins/mobile/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/mobile/tag-articles.ftl b/skins/mobile/tag-articles.ftl
index 79906fd..f045986 100644
--- a/skins/mobile/tag-articles.ftl
+++ b/skins/mobile/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/mobile/tags.ftl b/skins/mobile/tags.ftl
index b45685a..1cf7800 100644
--- a/skins/mobile/tags.ftl
+++ b/skins/mobile/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/archive-articles.ftl b/skins/next/archive-articles.ftl
index 11eaf8e..0077021 100644
--- a/skins/next/archive-articles.ftl
+++ b/skins/next/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/archives.ftl b/skins/next/archives.ftl
index 816b40f..10e08b7 100644
--- a/skins/next/archives.ftl
+++ b/skins/next/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/article-list.ftl b/skins/next/article-list.ftl
index c77ac75..3705df7 100644
--- a/skins/next/article-list.ftl
+++ b/skins/next/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <section class="posts-expand">
     <#list articles as article>
     <article class="post-item">
diff --git a/skins/next/article.ftl b/skins/next/article.ftl
index 9010978..d1c7084 100644
--- a/skins/next/article.ftl
+++ b/skins/next/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/next/category-articles.ftl b/skins/next/category-articles.ftl
index df3ace7..4f83c4d 100644
--- a/skins/next/category-articles.ftl
+++ b/skins/next/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/common-comment.ftl b/skins/next/common-comment.ftl
index 6e90429..9dd51ed 100644
--- a/skins/next/common-comment.ftl
+++ b/skins/next/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}" class="fn-clear">
     <img class="avatar-48" title="${comment.commentName}" src="${comment.commentThumbnailURL}">
     <div class="comment-body">
diff --git a/skins/next/css/next.css b/skins/next/css/next.css
index 6491346..090f1bc 100644
--- a/skins/next/css/next.css
+++ b/skins/next/css/next.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin next style
diff --git a/skins/next/css/next.min.css b/skins/next/css/next.min.css
index 1888c3b..e43efde 100644
--- a/skins/next/css/next.min.css
+++ b/skins/next/css/next.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";a,body{color:#555}.article-body,.post-body,ul.comments li{word-wrap:break-word}html{background-color:#f5f5f5}body{margin:0;font-family:Lato,"PingFang SC","Microsoft YaHei",sans-serif;font-size:14px;background:#fff}a{text-decoration:none;border-bottom:1px solid #999}a:active,a:hover{outline:0}a:hover{color:#222;border-bottom-color:#222}hr{margin:40px 0;height:3px;border:none;background-color:#ddd;background-image:repeating-linear-gradient(-45deg,#fff,#fff 4px,transparent 4px,transparent 8px)}blockquote{padding:0 15px;color:#666;border-left:4px solid #ddd}img{max-width:100%;height:auto}.fn-clear:after,.fn-clear:before{display:table;content:"";line-height:0}.fn-clear:after{clear:both;line-height:0}.fn-left{float:left}.fn-right{float:right}.fn-none{display:none}@font-face{font-family:icomoon;src:url(fonts/icomoon.eot?a0psdo);src:url(fonts/icomoon.eot?a0psdo#iefix) format('embedded-opentype'),url(fonts/icomoon.ttf?a0psdo) format('truetype'),url(fonts/icomoon.woff?a0psdo) format('woff'),url(fonts/icomoon.svg?a0psdo#icomoon) format('svg');font-weight:400;font-style:normal}[class*=" icon-"],[class^=icon-]{font-family:icomoon!important;speak:none;font-style:normal;font-weight:400;font-variant:normal;text-transform:none;line-height:1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.icon-register:before{content:"\e973"}.icon-setting:before{content:"\e994"}.icon-login:before{content:"\ea13"}.icon-logout:before{content:"\ea14"}.icon-rss:before{content:"\e901"}.form{width:100%;margin-top:50px}.form button,.form input,.form textarea{border:1px solid #CCC;background-color:#FAFAFA;border-radius:3px;box-shadow:0 1px 2px rgba(0,0,0,.075) inset;padding:7px 8px;width:100%;box-sizing:border-box;outline:0}.form button{width:auto}.form input:focus,.form textarea:focus{background-color:#FFF;box-shadow:0 1px 2px rgba(0,0,0,.075) inset,0 0 5px rgba(81,167,232,.5);border:1px solid #51A7E8}.error-msg{color:#9EABB3;margin-right:10px}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}.menu .menu-item a,.pagination .next,.pagination .page-number,.post-title-link::before,.posts-collapse .post-header,.posts-collapse .post-header::before,.sidebar-toggle-line{transition-duration:.2s;transition-timing-function:ease-in-out;transition-delay:0s}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 0}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.wrapper{max-width:700px;min-width:600px;margin:0 auto;padding:0 10px}.main{position:relative;top:-50px;opacity:0}.header{background:#f5f5f5;margin-bottom:80px;padding:40px 0}.logo-wrap{float:left;overflow:hidden;top:0;opacity:0}.logo-line-after,.logo-line-before{display:block;overflow:hidden;margin:0 auto;width:75%}.logo-line-after i,.logo-line-before i{position:relative;display:block;height:2px;background:#222;left:-100%}.logo-line-after i{left:auto;right:-100%}.logo-wrap .site-title{font-size:22px;font-weight:bolder;opacity:0;top:-10px;position:relative}.logo-wrap>a{position:relative;display:inline-block;padding:2px 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18px;border:none;border-radius:0;width:140px;background:url(data:image/svg+xml;base64,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) 0 50% no-repeat;background-size:12px 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.sidebar-toggle-line-middle{opacity:0}.sidebar-toggle.sidebar-active .sidebar-toggle-line-last{width:100%;transform:rotateZ(45deg);top:-6px}.back-to-top,.sidebar{position:fixed;background:#222;-webkit-transform:translateZ(0)}.back-to-top{bottom:19px;width:15px;height:13px;color:#fff}.back-to-top:before{display:block;content:" ";margin-top:2px;width:0;height:0;border-width:0 7px 8px;border-color:transparent transparent #fff;border-style:solid}.sidebar{width:320px;right:-320px;top:0;bottom:0;z-index:1040;box-shadow:inset 0 2px 6px #000;padding:20px 10px;color:#999;text-align:center;box-sizing:border-box}.sidebar a{color:#999;border-bottom-color:#555}.sidebar a:hover{color:#eee}.sidebar .site-author-image{display:block;margin:20px auto 0;max-width:96px;height:auto;border:2px solid #333;padding:2px}.sidebar .site-author-name{margin:5px 0 0;color:#f5f5f5}.sidebar .site-description{margin-top:5px;font-size:14px;color:#555}.sidebar .feed-link,.sidebar .links-of-author{margin-top:20px}.sidebar 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0}.posts-collapse .collection-title h2{margin-left:20px}.posts-collapse .collection-title small{color:#bbb}.posts-collapse .post-header::before{position:absolute;top:12px;width:6px;height:6px;margin-left:-4px;border:1px solid #fff;transition-property:background}.posts-collapse .post-header{position:relative;transition-property:border;border-bottom:1px dashed #ccc;text-align:left}.posts-collapse .post-header:hover{border-bottom-color:#666}.posts-collapse .post-header:hover::before{background:#222}.posts-collapse .post-time{position:absolute;font-size:12px;left:20px;top:8px}.posts-collapse .post-title{margin-left:70px;font-size:16px;font-weight:400;font-family:Lato,"PingFang SC","Microsoft YaHei",sans-serif;line-height:inherit;text-decoration:none;border-bottom:0;color:#666}.page-archive .archive-page-counter{position:relative;top:7px;left:20px;margin-bottom:50px;display:block}.page-archive .posts-collapse .archive-move-on{position:absolute;top:11px;left:0;margin-left:-6px;width:10px;height:10px;opacity:.5;background:#555;border:1px solid #fff;border-radius:50%}.page-archive .post-title{margin-left:20px}.page-archive .posts-collapse .post-header::before{top:8px}.page-archive .posts-collapse::after{top:20px;left:0;margin-left:-2px;width:4px;height:100%;background:#f5f5f5;z-index:-1;content:" ";position:absolute}@media (max-width:1000px){.sidebar,.sidebar-toggle{display:none}body{padding-right:0!important}}@media (max-width:700px){.page-archive .posts-collapse .archive-move-on{margin-left:5px}.posts-collapse{margin-left:10px}.page-archive .archive-page-counter{margin-right:10px}.site-nav-toggle{display:block;margin-top:16px}.back-to-top,.header-line,.logo-line-after,.logo-line-before,.menu,.site-search{display:none}.header{margin-bottom:50px;padding:5px 0}.header-line{position:relative;top:52px;height:1px;width:100%;background-color:#ddd}.btn-bar,.menu .menu-item{display:block}.wrapper{min-width:inherit}.btn-bar{width:22px;height:2px;background:#555;border-radius:1px}.btn-bar+.btn-bar{margin-top:4px}.menu{width:100%;margin:0 0 0 -20px;padding:0 5px;line-height:26px}.menu .page-icon{margin:6px -4px 0 10px}.footer{text-align:center;font-size:12px;padding:10px 0}.footer .fn-right{float:none}}
\ No newline at end of file
diff --git a/skins/next/dynamic.ftl b/skins/next/dynamic.ftl
index 7221e06..5a38ce1 100644
--- a/skins/next/dynamic.ftl
+++ b/skins/next/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/footer.ftl b/skins/next/footer.ftl
index 2771737..fa4fbcb 100644
--- a/skins/next/footer.ftl
+++ b/skins/next/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <footer class="footer">
     <div class="wrapper fn-clear">
         <a href="${servePath}">${blogTitle}</a>  •
diff --git a/skins/next/header.ftl b/skins/next/header.ftl
index 6cb426f..7396793 100644
--- a/skins/next/header.ftl
+++ b/skins/next/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <header class="header">
     <div class="header-line"></div>
     <div class="fn-clear wrapper">
diff --git a/skins/next/index.ftl b/skins/next/index.ftl
index 9c784ce..6a8a0af 100644
--- a/skins/next/index.ftl
+++ b/skins/next/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/js/next.js b/skins/next/js/next.js
index 8cf91b0..aaeb466 100644
--- a/skins/next/js/next.js
+++ b/skins/next/js/next.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview util and every page should be used.
diff --git a/skins/next/js/next.min.js b/skins/next/js/next.min.js
index b05278c..fe2494d 100644
--- a/skins/next/js/next.min.js
+++ b/skins/next/js/next.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var NexT={init:function(){$(".sidebar-toggle").click(function(){var i=$(".sidebar");$(this).hasClass("sidebar-active")?($(this).removeClass("sidebar-active"),$("body").animate({"padding-right":0}),i.animate({right:-320}),i.find("section").css("opacity",0)):($(this).addClass("sidebar-active"),$("body").animate({"padding-right":320}),i.animate({right:0},function(){i.find("section:first").animate({opacity:1})}))}),$(".site-nav-toggle").click(function(){$(".site-nav").slideToggle()}),$(document).ready(function(){setTimeout(function(){$(".logo-wrap").css("opacity",1),$(".logo-line-before i").animate({left:"0"},function(){$(".site-title").css("opacity",1).animate({top:0},function(){$(".menu").css("opacity",1).animate({"margin-top":"15px"}),$(".main").css("opacity",1).animate({top:"0"},function(){$(".b3-solo-list li").length>0&&$(window).width()>1e3&&$(".sidebar-toggle").click()})})}),$(".logo-line-after i").animate({right:"0"})},500),$("body").on("click",".article-body img",function(){window.open(this.src)})})},initArticle:function(){if($(".b3-solo-list li").length>0&&$(window).width()>1e3){$(".sidebar-toggle").addClass("has-toc");var i='<ul><li class="current" data-tab="toc">'+Label.tocLabel+'</li><li data-tab="site">'+Label.siteViewLabel+"</li></ul><section></section>";$(".sidebar").prepend(i);var t=$(".sidebar section:first").html($(".b3-solo-list")),a=$(".sidebar section:last");t.height($(window).height()-90),$(".sidebar > ul > li").click(function(){"toc"===$(this).data("tab")?a.animate({opacity:"0",top:"-50px"},300,function(){t.show().css("top","-50px"),t.animate({opacity:"1",top:"0"},300)}):t.animate({opacity:"0",top:"-50px"},300,function(){t.hide().css("top","-50px"),a.animate({opacity:"1",top:"0"},300)}),$(".sidebar > ul > li").removeClass("current"),$(this).addClass("current")}),this.initToc()}},initToc:function(){var i=$(".article-body [id^=b3_solo_h]"),t=$(".b3-solo-list");$(window).scroll(function(a){if(0===$(".b3-solo-list li").length)return!1;var o=[];i.each(function(i){o.push({id:this.id,offsetTop:this.offsetTop})});for(var e=$(window).scrollTop(),n=0,s=o.length;n<s;n++)if(e<o[n].offsetTop+200){t.find("li").removeClass("current");var l=n>0?n-1:0;t.find('a[href="#'+o[l].id+'"]').parent().addClass("current");break}e>=o[o.length-1].offsetTop+200&&(t.find("li").removeClass("current"),t.find("li:last").addClass("current"))}),$(window).scroll()}};NexT.init();
\ No newline at end of file
diff --git a/skins/next/lang/lang_en_US.properties b/skins/next/lang/lang_en_US.properties
index f4dbc5c..1be31df 100644
--- a/skins/next/lang/lang_en_US.properties
+++ b/skins/next/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/next/lang/lang_zh_CN.properties b/skins/next/lang/lang_zh_CN.properties
index f1add70..fe371f7 100644
--- a/skins/next/lang/lang_zh_CN.properties
+++ b/skins/next/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/next/macro-comments.ftl b/skins/next/macro-comments.ftl
index 98c0819..fc462a7 100644
--- a/skins/next/macro-comments.ftl
+++ b/skins/next/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <ul class="comments" id="comments">
     <#list commentList as comment>
diff --git a/skins/next/macro-head.ftl b/skins/next/macro-head.ftl
index 4978bc8..2722e52 100644
--- a/skins/next/macro-head.ftl
+++ b/skins/next/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/next/page.ftl b/skins/next/page.ftl
index 784b7d3..8bc867f 100644
--- a/skins/next/page.ftl
+++ b/skins/next/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/next/side.ftl b/skins/next/side.ftl
index e8c3e3e..b3e05e7 100644
--- a/skins/next/side.ftl
+++ b/skins/next/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="sidebar-toggle">
     <span class="sidebar-toggle-line sidebar-toggle-line-first"></span>
     <span class="sidebar-toggle-line sidebar-toggle-line-middle"></span>
diff --git a/skins/next/skin.properties b/skins/next/skin.properties
index 08d3024..9dd2749 100644
--- a/skins/next/skin.properties
+++ b/skins/next/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/next/tag-articles.ftl b/skins/next/tag-articles.ftl
index b8c8918..ee51d65 100644
--- a/skins/next/tag-articles.ftl
+++ b/skins/next/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/next/tags.ftl b/skins/next/tags.ftl
index a7fa691..55d60a7 100644
--- a/skins/next/tags.ftl
+++ b/skins/next/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/archive-articles.ftl b/skins/owmx-3.0/archive-articles.ftl
index ee3b449..c551fcd 100644
--- a/skins/owmx-3.0/archive-articles.ftl
+++ b/skins/owmx-3.0/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/article-list.ftl b/skins/owmx-3.0/article-list.ftl
index c048946..4260432 100644
--- a/skins/owmx-3.0/article-list.ftl
+++ b/skins/owmx-3.0/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <h1>
     <a rel="bookmark" href="${servePath}${article.articlePermalink}">
diff --git a/skins/owmx-3.0/article.ftl b/skins/owmx-3.0/article.ftl
index 969c8fd..c3989f3 100644
--- a/skins/owmx-3.0/article.ftl
+++ b/skins/owmx-3.0/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/owmx-3.0/author-articles.ftl b/skins/owmx-3.0/author-articles.ftl
index e71e6f3..c2f9127 100644
--- a/skins/owmx-3.0/author-articles.ftl
+++ b/skins/owmx-3.0/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/category-articles.ftl b/skins/owmx-3.0/category-articles.ftl
index a8e0d3e..9bdc974 100644
--- a/skins/owmx-3.0/category-articles.ftl
+++ b/skins/owmx-3.0/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/common-comment.ftl b/skins/owmx-3.0/common-comment.ftl
index 43a7697..d651068 100644
--- a/skins/owmx-3.0/common-comment.ftl
+++ b/skins/owmx-3.0/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="comment-body">
     <div class="comment-panel">
         <div class="left comment-author">
diff --git a/skins/owmx-3.0/css/owmx-3.0.css b/skins/owmx-3.0/css/owmx-3.0.css
index e4cb774..f9d58ea 100644
--- a/skins/owmx-3.0/css/owmx-3.0.css
+++ b/skins/owmx-3.0/css/owmx-3.0.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*==================================================
 Template:	OWMX-3
diff --git a/skins/owmx-3.0/css/owmx-3.0.min.css b/skins/owmx-3.0/css/owmx-3.0.min.css
index db0c6f8..95824e4 100644
--- a/skins/owmx-3.0/css/owmx-3.0.min.css
+++ b/skins/owmx-3.0/css/owmx-3.0.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";a.selected,header p{color:#000}article,img{height:auto}H2,blockquote{margin:0 0 20px}blockquote,cite{padding:5px 10px}article,article label,aside,footer,header,hgroup,nav,pre code,section,time{display:block}#mostCommentArticles li,#mostViewCountArticles li,aside ul.aside-comments li div.left div{text-overflow:ellipsis;-o-text-overflow:ellipsis;overflow:hidden}.comment-form img,footer div{cursor:pointer}#a,.adspace{box-shadow:0 2px 2px rgba(0,0,0,.3)}.gallery,nav ul{list-style:none}a,article,aside,body,dd,dl,dt,footer,h1,h2,h3,header,html,li,nav,p,section,table,tbody,td,tfoot,th,thead,time,tr,ul{border:0;font:12px/22px Verdana,sans-serif;margin:0;outline:0;padding:0}.vevent dt,H1,H1 a,H3,H4,H5,H6,a.selected,article label,aside ul.aside-comments a,cite,dd.summary,header a:active,header a:link,header a:visited,header p{font-weight:700}H1,H3,H4,H5,H6,header,pre code{margin:0 0 10px}BODY{background:#DDD;margin:0;color:#444}img{max-width:100%;vertical-align:middle;border:0;overflow:hidden;font-size:12px}article,header,header p{border-radius:4px}H1,H1 a{font-size:15px}A,A:ACTIVE,A:LINK,A:VISITED{color:#016f93;text-decoration:none}A:HOVER{color:#DB0202}H1,H3,H4,H5,H6{background:url(../images/ai4.png) 0 7px no-repeat;border-bottom:1px solid #CCC;color:#666;padding:0 0 0 25px}H1{background:url(../images/ai4.png) 0 6px no-repeat}H2{font-size:14px}H3{background:url(../images/ai5.png) 0 7px no-repeat}H3,H4,H5,H6{font-size:13px}h4{background-position:0 5px}sup{color:#444;top:-4px}header{background:url(../images/hd.jpg) top left no-repeat #0098CC;height:200px;padding:10px;position:relative}header a:active,header a:link,header a:visited{color:#FFF;font-size:16px}header a:hover{color:#FFF}header p{background:#FFF;bottom:20px;opacity:.5;padding:10px;position:absolute;right:20px;width:400px}.comment-title,.comments,.vevent dt{position:relative}article{background:#FFF;border:1px solid #CCC;float:right;padding:20px;width:550px}article h1{color:#666;font-weight:700;font-size:15px}.highlight-1,.highlight-2,.highlight-3{-moz-border-radius:4px;-webkit-border-radius:4px;padding:5px 10px}.highlight-1{background:#FCC;border:1px dotted #F96}.highlight-2{background:#FF9;border:1px dotted #FC3}.highlight-3{background:#CF9;border:1px dotted #CC3}aside,pre code{background:#EEE}.vevent dd,blockquote,cite,pre code{border-left:2px solid #0098CC}cite{color:#666;font-size:12px;font-style:normal;margin:0}.vevent dt,pre{font-size:10px}blockquote{color:#666}pre{color:#333;line-height:15px;overflow:hidden;overflow-y:hidden}pre code{padding:5px}dl.vevent{margin:-20px 0 20px;padding:0}.vevent dt{left:0;top:22px}.vevent a,.vevent dd{font-size:11px}.vevent dd{margin:0 0 0 80px;padding:0 0 0 10px}article form{border-radius:4px;background:#DDD;margin:0 0 20px;padding:10px}article label{color:#666;font-size:10px;margin:0 0 0 2px}.s input,nav li li a{font-size:11px}article input,article textarea{border-radius:4px;border:1px solid #CCC;font-size:11px;padding:4px 5px;width:458px}article ul,aside ul{list-style:none;margin:0 0 20px}article ul{margin:0 0 20px 23px}article ul li{background:url(../images/ai2.png) 0 8px no-repeat;padding:0 0 0 17px}aside{float:left;margin:0 0 20px;width:200px;white-space:normal}#mostCommentArticles a,#mostViewCountArticles a,.comment-author a,footer div{white-space:nowrap}aside ul.aside-comments img{border-radius:4px;width:32px;height:32px;border:1px solid #999;padding:1px;margin-top:5px;margin-right:5px}aside ul.aside-comments .side-comment{color:#555;font-weight:400;overflow:hidden;white-space:nowrap;width:158px;height:18px}aside ul.aside-comments div.left>div>div{display:none}aside ul.aside-comments .side-comment img{border:0;height:16px;width:16px;padding:0;margin-right:0;margin-top:0}aside ul.aside-comments li{padding:2px 0}aside ul.aside-comments li div{width:158px}aside ul.aside-comments li div.left div{height:18px;line-height:18px}aside ul.navi-tags li{padding-left:0;background-image:none}aside ul.navi-tags li img{margin-bottom:3px;padding-right:6px;height:16px;width:16px}.s{margin:0 0 20px;padding:10px;width:179px}.s input{border-radius:4px;border:1px solid #AAA;color:#999;padding:4px 5px;width:168px}nav li{background:url(../images/ai1.png) 0 8px no-repeat;padding:0 0 0 15px}aside li ul li ul,nav li ul{margin:0}nav li li li a{font-size:10px}aside li.active li li,nav li li li{background:url(../images/ai8.png) 0 10px no-repeat}aside li.active li,nav li.active{background:url(../images/ai2.png) 0 8px no-repeat}nav .page-icon{float:left;height:14px;width:14px;margin:4px 4px 0 0}.gallery{margin:0 0 10px}.gallery li{display:inline;margin:0 15px 0 0}.gallery a img{border:1px solid #999;height:50px;opacity:.8;padding:1px;width:50px}.gallery li:last-child{margin:0 0 10px}.gallery a img:hover{opacity:1}.adspace{border-radius:4px;background:#EEE;height:100%;margin:0 0 20px;padding:5px 10px;text-align:center;width:178px}.adspace a img{border:none}#tagcloud{overflow:hidden;width:200px}#tagcloud li{display:inline;margin:0 10px 0 0}.tagcloudsize-1 a{font-size:14px}.tagcloudsize-2 a{font-size:16px}.tagcloudsize-3 a{font-size:18px}footer{border-top:1px dotted #B5B3A9;clear:both;margin:20px 0}footer a,footer p{color:#666;display:inline;font-size:12px}footer div{background:url(../images/icons.gif) 0 -304px no-repeat;color:#2A2A2A;line-height:18px;margin:5px 17px 0 0;padding-left:16px;width:22px;float:right}footer span{margin:0}footer img{height:28px}.comments{background:#FCFCFC;border-bottom:1px solid #CCC;border-top:1px solid #CCC;margin:15px -15px;padding:0 15px 15px}.comment-title{background-color:#E3E9FF;border-top:1px solid #36C;padding:3px 12px}.comment-body-ref{border-radius:6px;background-color:#FFF;border:1px solid #CCC;opacity:.9;padding:6px;position:absolute;width:387px;left:174px}.comment-body-ref .comment-author{width:67px}.comment-body-ref .comment-info{width:300px;border-width:0}.comment-body{margin-top:15px}.comment-author{float:left;text-align:center;width:81px}.comment-author div{margin-top:10px;padding-right:14px;background:url(../images/commentpoint.png) 100% 33% no-repeat}.comment-author img{border-radius:4px;border:1px solid #999;padding:1px;width:32px;height:32px}.comment-author a{margin-right:14px;font-weight:700}.comment-info{border-radius:6px;width:440px;padding:5px 10px;background:#EDEFF0;border:1px dotted #EDEFF0}.comment-content{word-wrap:break-word;overflow:hidden;background:url(../images/comment.gif) 100% 100% no-repeat;line-height:145%;margin:0 -15px;padding:9px 15px 10px;font-size:12px}.comment-form input,.comment-form textarea{height:16px;outline:0;font-family:Helvetica,Arial,sans-serif;color:#555;background:url(../images/textfield.gif) 50% 0 repeat-x #FFF;border:1px solid #A6A6A6;padding:2px 1px;width:200px}.comment-form textarea{width:541px;font-size:12px;height:auto}.comment-form button{background:#B4D666;border-color:#B4D666 #81B840 #81B840 #B4D666;border-style:solid;border-width:1px;color:#2970A6;font-size:12px;padding:0 6px;height:22px;line-height:22px;border-radius:0}#a,#c img{border-radius:4px}.comment-form button:hover{background:#98C64C;border-color:#76B33A #98C64C #98C64C #76B33A;color:#074A7E}.error-msg{color:#36C}#a,#b{margin:0 auto;position:relative}#a{background:#EEE;margin:15px auto;padding:10px 10px 0;width:800px}#b{overflow:hidden}#c,.meta,.s,nav ul{border-radius:4px;box-shadow:0 2px 2px rgba(0,0,0,.4);background:#CCC}#c{margin:0 0 20px;padding:5px 10px;width:178px}#c a,#c p{font-size:11px;line-height:15px}#c p{margin:0 0 10px}#c img{float:left;margin:4px 10px 2px 0}.meta{margin:10px 0 30px;padding:2px 5px}.meta a,.meta p{font-size:10px;margin:0}nav ul{padding:10px}nav ul ul{border-radius:none;box-shadow:none}.single_page{border-radius:4px;box-shadow:0 2px 2px rgba(0,0,0,.2);background:#F2F7F8;padding:10px;margin-bottom:25px;width:531px}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background-color:#bbb}::-webkit-scrollbar-thumb{background-color:#eee}::-webkit-scrollbar-thumb:hover{background-color:#888}
\ No newline at end of file
diff --git a/skins/owmx-3.0/footer.ftl b/skins/owmx-3.0/footer.ftl
index 361464c..9b52e1d 100644
--- a/skins/owmx-3.0/footer.ftl
+++ b/skins/owmx-3.0/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <footer>
     <span>&copy; ${year}</span> - <a href="${servePath}">${blogTitle}</a>${footerContent}
     Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}&nbsp;&nbsp;
diff --git a/skins/owmx-3.0/header.ftl b/skins/owmx-3.0/header.ftl
index d26c745..78adc78 100644
--- a/skins/owmx-3.0/header.ftl
+++ b/skins/owmx-3.0/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <header>
     <a href="${servePath}" id="logoTitle">${blogTitle}</a>
 	<p>${blogSubtitle}</p>
diff --git a/skins/owmx-3.0/index.ftl b/skins/owmx-3.0/index.ftl
index 41940cc..2471901 100644
--- a/skins/owmx-3.0/index.ftl
+++ b/skins/owmx-3.0/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/lang/lang_en_US.properties b/skins/owmx-3.0/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/owmx-3.0/lang/lang_en_US.properties
+++ b/skins/owmx-3.0/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/owmx-3.0/lang/lang_zh_CN.properties b/skins/owmx-3.0/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/owmx-3.0/lang/lang_zh_CN.properties
+++ b/skins/owmx-3.0/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/owmx-3.0/macro-comments.ftl b/skins/owmx-3.0/macro-comments.ftl
index 75aaa44..48125ab 100644
--- a/skins/owmx-3.0/macro-comments.ftl
+++ b/skins/owmx-3.0/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="comments" id="comments">
     <#list commentList as comment>
diff --git a/skins/owmx-3.0/macro-head.ftl b/skins/owmx-3.0/macro-head.ftl
index ce2a8fb..b29b3da 100644
--- a/skins/owmx-3.0/macro-head.ftl
+++ b/skins/owmx-3.0/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/owmx-3.0/page.ftl b/skins/owmx-3.0/page.ftl
index 14d0b5f..8d50f3e 100644
--- a/skins/owmx-3.0/page.ftl
+++ b/skins/owmx-3.0/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/owmx-3.0/side.ftl b/skins/owmx-3.0/side.ftl
index f425895..922ac12 100644
--- a/skins/owmx-3.0/side.ftl
+++ b/skins/owmx-3.0/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <aside>
     <nav>
         <h4>Search</h4>
diff --git a/skins/owmx-3.0/skin.properties b/skins/owmx-3.0/skin.properties
index a4a8134..92685e1 100644
--- a/skins/owmx-3.0/skin.properties
+++ b/skins/owmx-3.0/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/owmx-3.0/tag-articles.ftl b/skins/owmx-3.0/tag-articles.ftl
index 08adcdb..36e9513 100644
--- a/skins/owmx-3.0/tag-articles.ftl
+++ b/skins/owmx-3.0/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/owmx-3.0/tags.ftl b/skins/owmx-3.0/tags.ftl
index 4151a06..0f1b08e 100644
--- a/skins/owmx-3.0/tags.ftl
+++ b/skins/owmx-3.0/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/article-list.ftl b/skins/timeline/article-list.ftl
index 58ece0e..45dc763 100644
--- a/skins/timeline/article-list.ftl
+++ b/skins/timeline/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="wrapper">
     <div class="articles container">
         <div class="vertical"></div>
diff --git a/skins/timeline/article.ftl b/skins/timeline/article.ftl
index 161d16f..5bfbd97 100644
--- a/skins/timeline/article.ftl
+++ b/skins/timeline/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/timeline/author-articles.ftl b/skins/timeline/author-articles.ftl
index 11c6fe2..decb616 100644
--- a/skins/timeline/author-articles.ftl
+++ b/skins/timeline/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/category-articles.ftl b/skins/timeline/category-articles.ftl
index 9789149..6303705 100644
--- a/skins/timeline/category-articles.ftl
+++ b/skins/timeline/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/common-comment.ftl b/skins/timeline/common-comment.ftl
index 3df6f79..4ed9845 100644
--- a/skins/timeline/common-comment.ftl
+++ b/skins/timeline/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}">
     <img title="${comment.commentName}"
          alt="${comment.commentName}" src="${comment.commentThumbnailURL}"/>
diff --git a/skins/timeline/css/timeline.css b/skins/timeline/css/timeline.css
index 4d3271e..b4f3b12 100644
--- a/skins/timeline/css/timeline.css
+++ b/skins/timeline/css/timeline.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 /*
 * timeline skin style.
 *
diff --git a/skins/timeline/css/timeline.min.css b/skins/timeline/css/timeline.min.css
index c679adf..84440a7 100644
--- a/skins/timeline/css/timeline.min.css
+++ b/skins/timeline/css/timeline.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 .tags a:hover,a{text-decoration:none}.articles,.module{position:relative}.articles pre,.header .sub-title,.module{word-wrap:break-word}.header li,.module>ul.list,.nav-abs li,.tags li{list-style-type:none}.clear,.fn-clear:after{clear:both}body,html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;margin:0;padding:0;height:100%}body{font:.81em Verdana,arial,'\5fae\8f6f\96c5\9ed1';color:#666;background-color:#363A3D;overflow-y:scroll}button,input,select,textarea{margin:0;font-size:100%;vertical-align:middle;font-family:Verdana,arial,'\5fae\8f6f\96c5\9ed1';outline:0}a{color:#6599C6;outline:0;transition:color 1s ease 0s}a:hover{color:#000}img{max-width:100%;border:0;vertical-align:middle}::selection{background-color:#D5D5D5;color:#FCFCFC}::-moz-selection{background-color:#D5D5D5;color:#FCFCFC}.left{float:left}.right{float:right}.clear{background-color:transparent;border:0;display:block;font-size:0;height:0;line-height:0;overflow:hidden}.none{display:none}.fn-clear:after,.fn-clear:before{display:table;content:""}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#emotions span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 1px}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.tags{margin:0}.tags li{float:left;height:45px}.tags a{background-color:#FCFCFC;box-shadow:0 0 2px #D5D5D5;display:block;margin:5px 10px;padding:5px 10px}.tags a:hover{text-shadow:0 0 2px;box-shadow:0 0 4px #D5D5D5}.header .title a,.header li a{text-shadow:0 1px 0 rgba(255,255,255,.7)}.tags b{font-size:70%;opacity:.6;filter:alpha(opacity=60)}.tags1,.tags1:visited{font-size:12px;color:#a7a7a7}.tags2,.tags2:visited{font-size:14px;color:grey}.tags3,.tags3:visited{font-size:16px;color:#595959}.tags4,.tags4:visited{font-size:18px;color:#323232}.tags5,.tags5:visited{font-size:20px;color:#0a0a0a}.module{background-color:#FFF;border:1px solid #BEC3C7;border-radius:5px;box-shadow:0 1px 1px rgba(0,0,0,.1);margin-bottom:30px;padding:15px}.module>h3.title{margin:0 0 10px;color:#444}.module>ul.list{padding-left:0;margin:0;overflow:hidden}.module>ul.list>li{border-top:1px solid #EEE;padding:6px 0}#search,.articles .arrow,.ico-author,.ico-comment,.ico-reply,.ico-tags,.ico-top,.ico-translate,.ico-view{background-repeat:no-repeat;background-image:url(../images/icons.png)}.ico-author,.ico-comment,.ico-reply,.ico-tags,.ico-view{padding-left:20px;background-position:-1px -63px;margin-right:10px}.ico-tags{background-position:-1px -83px}.ico-comment{background-position:-1px -41px}.ico-view{background-position:0 -122px}.ico-reply{background-position:0 -162px}.ico-translate{background-position:0 -186px;cursor:pointer;float:right;height:16px;margin-left:10px;width:16px}#search{background-position:5px -138px;border:none;border-radius:12px;box-shadow:0 1px 0 rgba(0,0,0,.4) inset,0 1px 0 rgba(255,255,255,.1);color:#A5A099;height:22px;margin-top:13px;margin-bottom:10px;padding-left:25px;transition:width .7s ease 0s;width:60px}#search:focus{color:#333;width:140px}.ico-top{background-color:#363A3D;background-position:4px -100px;border-radius:20em;bottom:60px;box-shadow:0 -1px 2px rgba(0,0,0,.3) inset,0 1px 0 rgba(255,255,255,.15);height:25px;position:fixed;left:90%;width:25px;cursor:pointer}.ico-next,.ico-pre{background-color:#6599C6;border-radius:10em;color:#FFF;display:block;float:left;font:20px/100% "Times New Roman",Times,serif;height:28px;margin:-8px 10px 0 0;padding:4px 0 0;text-align:center;transition:background 1s ease 0s;width:32px}.ico-next{float:right;margin:-8px 0 0 10px}a:hover>.ico-next,a:hover>.ico-pre{background-color:#000}.wrapper{min-width:400px;padding:50px 0;background:url(../images/bg.png) #DEE4EA}.header{background-color:#BFBFBF;background-image:url(../images/nav-bg.png),linear-gradient(#CCC,#A9A9A9);background-image:url(../images/nav-bg.png),-ms-linear-gradient(#CCC,#A9A9A9);background-image:url(../images/nav-bg.png),-o-linear-gradient(#CCC,#A9A9A9);background-image:url(../images/nav-bg.png),-webkit-linear-gradient(#CCC,#A9A9A9);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr='#CCCCCC', endColorstr='#A9A9A9');border-bottom:1px solid #898989;box-shadow:0 -1px 0 rgba(255,255,255,.3) inset,0 1px 1px rgba(0,0,0,.2)}.container{width:80%;margin:0 auto}.footer{border-top:1px solid #232323;padding:20px 0;color:#ddd;font-size:80%}.footer a{color:#9CC0DE}.footer a:hover{text-decoration:underline}.header .title{font-size:150%;margin:3px 0 0}.header .title a{color:#414141}.header .sub-title{float:left;max-width:574px;white-space:normal}.header li a{color:#444;padding:17px;line-height:20px;white-space:nowrap}.header li a.current{border-bottom:2px solid #D26911}.header a:hover{color:#000}.header li{float:left}.header>.container>form,.header>.container>ul{height:auto;overflow:visible}.header .page-icon{height:14px;width:14px;margin:-1px 5px 0 0}.articles{margin-top:11px}.articles>div.fn-clear{position:relative;margin-bottom:50px}.articles>div.fn-clear>h2{margin:0;text-align:center;height:28px}.articles>.vertical{background-color:#9EB5C6;border-radius:20em;box-shadow:0 0 1px 0 rgba(0,0,0,.5) inset,0 0 1px 0 rgba(255,255,255,.6);height:100%;left:50%;margin-left:-3px;position:absolute;top:0;width:6px}.articles article{width:50%;float:left}.articles article.l>div.module{margin-right:30px;left:0}.articles article.r{left:50%}.articles article.r>div{margin-left:30px;position:relative}.articles .dot{background-color:#FFF;border:3px solid #60829F;border-radius:20em;height:6px;position:absolute;right:-37px;top:22px;width:6px}.articles .r .dot{left:-37px;right:inherit}.articles .arrow{height:15px;position:absolute;right:-9px;top:21px;width:9px}.articles .r .arrow{background-position:0 -22px;left:-9px;right:inherit}.articles pre{background-color:#F5F5F5;border:1px solid #ddd;border-radius:4px;padding:9.5px;white-space:pre-wrap}time.article-time{top:-8px;left:50%;position:absolute}time.article-time>span{background-color:#FFF;border:1px solid #A8A9A9;border-radius:20em;font-size:80%;margin-left:-56px;padding:5px 10px}.article-archive,.article-more{background-color:#60829F;border-radius:20em;box-shadow:0 1px 0 rgba(0,0,0,.2) inset,0 1px 0 rgba(255,255,255,.6);padding:5px 20px}article .article-title{margin:10px 0 0}article .article-title>sup{color:#6599C6;font-size:70%}article .article-title a{color:#000;text-decoration:none}.ico>a{color:#999;font-size:80%;text-decoration:none}.ico>a:hover{color:#000}.article-more{color:#FFF;cursor:pointer;font-weight:700;height:19px;left:50%;margin-left:-38px;position:absolute;text-align:center;top:100%;width:36px}.article-archive{color:#FFF;font-size:80%;font-weight:400}.dynamic-l{float:left;width:70%}.dynamic-l>div{margin-right:30px}.dynamic-r{float:right;width:30%}.dynamic-r .tags a,.links a{line-height:24px}#comments{margin:30px 0 50px;position:relative}.comments>li>img{height:60px;width:60px;border-radius:30px;float:left;margin-right:15px}.comments .author{font-size:130%;font-style:italic}.comments>li>div>div.article-body{padding-left:75px;margin:12px 0}.module>ul>li.comment-body-ref{background-color:#FFF;border:1px solid #ddd;left:76px;opacity:.8;filter:alpha(opacity=80);padding:10px;position:absolute;width:74%;border-radius:10px}.comment-body-ref .ico-reply{display:none}.comment-form{width:100%;margin:30px 0}#commentForm{margin-top:0}.comment-form input[type=text],.comment-form textarea{background:url(../images/bg.png) #E5E8EA;border:1px solid #BCBDBE;border-radius:5px;box-shadow:0 1px 2px rgba(0,0,0,.1) inset;margin:5px 5px 5px 0;padding:6px}.comment-form input[type=text]:focus,.comment-form textarea:focus{background-color:#EFEFEF;outline:0}#submitCommentButton,#submitCommentButtonReply{background:#868889;border:1px solid #5D6265;border-radius:10em;box-shadow:0 1px 0 rgba(255,255,255,.3) inset,0 1px 1px rgba(0,0,0,.3);color:#FFF;cursor:pointer;padding:5px 20px;text-shadow:0 -1px 0 rgba(0,0,0,.3)}#submitCommentButton:hover,#submitCommentButtonReply:hover{color:#fff;background-color:#444}.nav-abs{background-color:#6B6B6B;border:1px solid #898989;border-radius:5px;box-shadow:0 1px 3px rgba(0,0,0,.4) inset,0 1px 0 rgba(255,255,255,.7),0 -1px 0 rgba(255,255,255,.6);color:#CCC;padding:5px 10px;position:absolute;right:30px;top:61px;z-index:1;text-align:center;white-space:nowrap}.index-nav-abs{padding:0;position:fixed;max-width:160px}.nav-abs li{background-color:#DEDDDD;border:1px solid #6B6B6B;color:#616161;cursor:pointer;float:left;height:20px;padding:3px 5px;width:28px}.nav-abs li.year{background-color:#6B6B6B;clear:both;color:#CCC;float:none;text-shadow:0 -1px 0 rgba(0,0,0,.5);width:auto;border-width:0}.nav-abs li:hover{background-color:#EFEEEE;color:#000}.nav-abs li.open,.nav-abs li.year:hover{background-color:#353535;color:#fff}@media (max-width:650px){#top>.left,.container{width:100%}#admin,#admin>a,#top>.left,#top>a,.author,.ico-reply{display:block}.wrapper{min-width:200px}#top>.left{float:none}#top>a{float:none!important}#hideTop{position:absolute;right:0;top:0}#admin{float:none}#admin>a{border-right-width:0!important;float:none!important;line-height:26px!important;margin:0!important}.header .title{height:26px;max-width:72%;overflow:hidden}.header>.container>div.left{float:none;height:50px;margin-left:10px}.header>.container>ul{float:none;padding:0}.header>.container li{float:none;padding:3px 10px}.header>.container li>a{padding:0;display:block}.header>.container li:hover{background-color:#FFF;background-image:linear-gradient(#FFF,#E5E5E5);background-image:-ms-linear-gradient(#FFF,#E5E5E5);background-image:-o-linear-gradient(#FFF,#E5E5E5);background-image:-webkit-linear-gradient(#FFF,#E5E5E5);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0, startColorstr='#FFFFFF', endColorstr='#E5E5E5')}.header>.container>form{float:none}#search{margin:5px 0 10px 10px}#search:focus{width:92%}.ico-list{background-color:#FCFCFC;background-image:url(../images/icons.png);background-position:4px -206px;background-repeat:no-repeat;border-radius:1px 0 3px 3px;cursor:pointer;float:right;height:25px;margin-right:35px;margin-top:-29px;width:25px}.articles article,.dynamic-l,.dynamic-r,.nav-abs li{float:none;width:auto}.ico-list:hover{background-color:#FFF}.footer>.container>.right{float:none;padding:0 10px;line-height:19px}.footer>.container>.right>.left{float:none}.nav-abs{position:inherit!important;padding:0;background-color:transparent;box-shadow:none;border-width:0;max-width:none!important}.index-nav-abs{margin:0}.author,.ico-reply{margin-left:75px}.comments>li>div>div.article-body{padding-left:0}.dynamic-l>div{margin-right:0}#admin>span,.articles .arrow,.articles .dot,.footer>.container>.left,.ft-next,.ft-pre{display:none}.header>.container>form,.header>.container>ul{height:0;overflow:hidden;margin:0}.articles{padding-bottom:10px}.articles>div.fn-clear>h2{margin-bottom:40px}}@media (max-width:360px){#commentForm label,#replyForm label,.footer>.container>.right>.left>span,.ico{display:block}.ico{float:none;line-height:19px}.dynamic-r .ico{float:right}.ico-translate{display:block;float:none;margin-left:0}.ico-top{bottom:114px}}
\ No newline at end of file
diff --git a/skins/timeline/dynamic.ftl b/skins/timeline/dynamic.ftl
index d316106..eacfbcc 100644
--- a/skins/timeline/dynamic.ftl
+++ b/skins/timeline/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/footer.ftl b/skins/timeline/footer.ftl
index 9589394..bfcc82e 100644
--- a/skins/timeline/footer.ftl
+++ b/skins/timeline/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="footer">
     <div class="container fn-clear">
         <div class="left">
diff --git a/skins/timeline/header.ftl b/skins/timeline/header.ftl
index 91710c5..05441cf 100644
--- a/skins/timeline/header.ftl
+++ b/skins/timeline/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <!--[if lt IE 9]>
     <script type="text/javascript">
        (function () {
diff --git a/skins/timeline/index.ftl b/skins/timeline/index.ftl
index dc1517d..58cc43b 100644
--- a/skins/timeline/index.ftl
+++ b/skins/timeline/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/js/timeline.js b/skins/timeline/js/timeline.js
index 69f4c6a..d7eafb0 100644
--- a/skins/timeline/js/timeline.js
+++ b/skins/timeline/js/timeline.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview timeline js.
diff --git a/skins/timeline/js/timeline.min.js b/skins/timeline/js/timeline.min.js
index 6a73b1e..17922f7 100644
--- a/skins/timeline/js/timeline.min.js
+++ b/skins/timeline/js/timeline.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var timeline={_COLHA:0,_COLHB:20,_initArticleList:function(){var e=$(".articles");0===e.length||$(".articles > .fn-clear").length>0||($(window).resize(function(){if("auto"===$("#hideTop").css("top")){var t=[timeline._COLHA,timeline._COLHB];e.find("article").each(function(){var e=$(this),a=t[1]>t[0],i=a?t[0]:t[1];parseInt(e.css("top"))===i&&0!==i||(e.css({top:i+"px",position:"absolute"}),this.className=a?"l":"r"),t[a?"0":"1"]+=parseInt(e.outerHeight(!0))}),e.height(t[0]>t[1]?t[0]:t[1])}else e.find("article").each(function(){$(this).css({position:"inherit",top:"auto"}).removeClass("r l")}),e.css("height","auto")}),$(window).resize(),$(".module img").imagesLoaded(function(){$(window).resize()}))},_initIndexList:function(){var e=$(".articles > .fn-clear");if(0!==e.length){var t=0;$(".nav-abs li").each(function(e){var a=$(this);a.hide(),t!==a.data("year")&&(t=a.data("year"),a.before("<li class='close year' onclick='timeline.toggleArchives(this, "+t+")'>"+t+"</li>"))}),$(".article-more").parent().data("count")<=$(".article-more").parent().find("article").length&&$(".article-more").remove(),$(window).resize(function(){e.each(function(){if("auto"===$("#hideTop").css("top")){var e=[timeline._COLHA+60,4*timeline._COLHB],t=$(this).find("article");0===t.length?($(this).find("h2").remove(),$(this).css("margin-bottom",0)):(t.each(function(){var t=$(this),a=e[1]>e[0],i=a?e[0]:e[1];parseInt(t.css("top"))===i&&0!==i||(t.css({top:i+"px",position:"absolute"}),this.className=a?"l":"r"),e[a?"0":"1"]+=parseInt(t.outerHeight(!0))}),$(this).height(e[0]>e[1]?e[0]:e[1]))}else{var t=$(this).find("article");0===t.length?($(this).find("h2").remove(),$(this).css("margin-bottom",0)):(t.each(function(){$(this).css({position:"inherit",top:"auto"}).removeClass("r l")}),$(this).css("height","auto"))}})}),$(window).resize(),$(".module img").imagesLoaded(function(){$(window).resize()})}},_setNavCurrent:function(){$(".header li a").each(function(){$(this).prop("href")===location.href.split("#")[0]?this.className="current":this.className=""})},init:function(){$(window).scroll(function(){$(window).scrollTop()>60?$(".ico-top").show():$(".ico-top").hide()}),timeline._initIndexList(),timeline._initArticleList(),timeline._setNavCurrent(),$(".ico-list").click(function(){"0px"===$(".header > .container > form").css("height")?$(".header > .container > ul, .header > .container > form").css({height:"auto"}):$(".header > .container > ul, .header > .container > form").animate({height:"0px"})})},translate:function(){window.open("http://translate.google.com/translate?sl=auto&tl=auto&u="+location.href)},getArchive:function(e,t,a){var i=e+t,n=e+"/"+t;if(window.location.hash="#"+i,0===$("#"+i+" > article").length){var s=e+" "+Label.yearLabel+" "+t+" "+Label.monthLabel;"en"===Label.localeString.substring(0,2)&&(s=a+" "+e);var r='<h2><span class="article-archive">'+s+'</span></h2><div class="article-more" onclick="timeline.getNextPage(this, \''+n+'\')" data-page="0">'+Label.moreLabel+"</div>";$("#"+i).html(r).css("margin-bottom","50px"),timeline.getNextPage($("#"+i).find(".article-more")[0],n)}},getNextPage:function(e,t){var a=$(e),i=a.data("page")+1,n="/articles/";if(1===$("#tag").length){var s=location.pathname.split("/");n="/articles/tags/"+s[s.length-1]+"/"}else if(1===$("#author").length){var s=location.pathname.split("/");n="/articles/authors/"+s[s.length-1]+"/"}else t&&(n="/articles/archives/"+t+"/");$.ajax({url:latkeConfig.servePath+n+i,type:"GET",beforeSend:function(){a.css("background","url("+latkeConfig.staticServePath+"/skins/timeline/images/ajax-loader.gif) no-repeat scroll center center #60829F").text("")},success:function(e,t){if(!e.sc)return void a.css("background","none #60829F").text("Error");if(0===e.rslts.articles.length)return void a.remove();for(var n="",s=e.rslts.pagination,r=0;r<e.rslts.articles.length;r++){var o=e.rslts.articles[r];n+='<article><div class="module"><div class="dot"></div><div class="arrow"></div><time class="article-time"><span>'+Util.toDate(o.articleCreateTime,"yy-MM-dd HH:mm")+'</span></time><h3 class="article-title"><a rel="bookmark" href="'+latkeConfig.servePath+o.articlePermalink+'">'+o.articleTitle+"</a>",o.hasUpdated&&(n+="<sup>"+Label.updatedLabel+"</sup>"),o.articlePutTop&&(n+="<sup>"+Label.topArticleLabel+"</sup>"),n+="</h3><p>"+o.articleAbstract+'</p><span class="ico-tags ico" title="'+Label.tagLabel+'">';for(var l=o.articleTags.split(","),c=0;c<l.length;c++)n+='<a rel="category tag" href="'+latkeConfig.servePath+"/tags/"+encodeURIComponent(l[c])+'">'+l[c]+"</a>",c<l.length-1&&(n+=",");n+='</span>&nbsp;<span class="ico-author ico" title="'+Label.authorLabel+'"><a rel="author" href="'+latkeConfig.servePath+"/authors/"+o.authorId+'">'+o.authorName+'</a></span>&nbsp;<span class="ico-comment ico" title="'+Label.commentLabel+'"><a rel="nofollow" href="'+latkeConfig.servePath+o.articlePermalink+'#comments">'+(0===o.articleCommentCount?Label.noCommentLabel:o.articleCommentCount)+'</a></span>&nbsp;<span class="ico-view ico" title="'+Label.viewLabel+'"><a rel="nofollow" href="${servePath}${article.articlePermalink}">'+o.articleViewCount+"</a></span></div></article>"}a.before(n).data("page",i),s.paginationPageCount<=i?a.remove():a.css("background","none #60829F").text(Label.moreLabel),$(window).resize(),$(".module img").imagesLoaded(function(){$(window).resize()})}})},toggleArchives:function(e,t){$(".nav-abs li").each(function(a){var i=$(this);i.hasClass("year")||(i.hide(),t===i.data("year")&&$(e).hasClass("close")&&i.show())}),$(".nav-abs li.year").each(function(){parseInt($(this).text())===t?$(e).hasClass("close")?e.className="year open":e.className="year close":this.className="year close"})}};!function(e,t){"use strict";var a="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==";e.fn.imagesLoaded=function(t){function i(){var a=e(d),i=e(u);o&&(u.length?o.reject(c,a,i):o.resolve(c)),e.isFunction(t)&&t.call(r,c,a,i)}function n(e){s(e.target,"error"===e.type)}function s(t,s){t.src!==a&&-1===e.inArray(t,h)&&(h.push(t),s?u.push(t):d.push(t),e.data(t,"imagesLoaded",{isBroken:s,src:t.src}),l&&o.notifyWith(e(t),[s,c,e(d),e(u)]),c.length===h.length&&(setTimeout(i),c.unbind(".imagesLoaded",n)))}var r=this,o=e.isFunction(e.Deferred)?e.Deferred():0,l=e.isFunction(o.notify),c=r.find("img").add(r.filter("img")),h=[],d=[],u=[];return e.isPlainObject(t)&&e.each(t,function(e,a){"callback"===e?t=a:o&&o[e](a)}),c.length?c.bind("load.imagesLoaded error.imagesLoaded",n).each(function(t,i){var n=i.src,r=e.data(i,"imagesLoaded");return r&&r.src===n?void s(i,r.isBroken):i.complete&&void 0!==i.naturalWidth?void s(i,0===i.naturalWidth||0===i.naturalHeight):void((i.readyState||i.complete)&&(i.src=a,i.src=n))}):i(),o?o.promise(r):r}}(jQuery),function(){Util.init(),Util.replaceSideEm($(".comments .article-body")),Util.buildTags("tagsSide"),timeline.init()}();
\ No newline at end of file
diff --git a/skins/timeline/lang/lang_en_US.properties b/skins/timeline/lang/lang_en_US.properties
index 3a33d99..1e75ba3 100644
--- a/skins/timeline/lang/lang_en_US.properties
+++ b/skins/timeline/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/timeline/lang/lang_zh_CN.properties b/skins/timeline/lang/lang_zh_CN.properties
index 26314e8..a986452 100644
--- a/skins/timeline/lang/lang_zh_CN.properties
+++ b/skins/timeline/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/timeline/macro-comments.ftl b/skins/timeline/macro-comments.ftl
index b9e48b0..f500b9f 100644
--- a/skins/timeline/macro-comments.ftl
+++ b/skins/timeline/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <ul id="comments" class="comments list">
     <#list commentList as comment>
diff --git a/skins/timeline/macro-head.ftl b/skins/timeline/macro-head.ftl
index d774250..6256cbf 100644
--- a/skins/timeline/macro-head.ftl
+++ b/skins/timeline/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/timeline/page.ftl b/skins/timeline/page.ftl
index 215d13b..411947b 100644
--- a/skins/timeline/page.ftl
+++ b/skins/timeline/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/timeline/skin.properties b/skins/timeline/skin.properties
index 0499e1d..81229c9 100644
--- a/skins/timeline/skin.properties
+++ b/skins/timeline/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/timeline/tag-articles.ftl b/skins/timeline/tag-articles.ftl
index 2e43db0..2e83fa7 100644
--- a/skins/timeline/tag-articles.ftl
+++ b/skins/timeline/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/timeline/tags.ftl b/skins/timeline/tags.ftl
index e2e6ca2..e5db1c2 100644
--- a/skins/timeline/tags.ftl
+++ b/skins/timeline/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/archive-articles.ftl b/skins/tree-house/archive-articles.ftl
index 317c186..8b26af0 100644
--- a/skins/tree-house/archive-articles.ftl
+++ b/skins/tree-house/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/article-list.ftl b/skins/tree-house/article-list.ftl
index e3a1ac5..778c601 100644
--- a/skins/tree-house/article-list.ftl
+++ b/skins/tree-house/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <div class="article">
     <div class="article-header">
diff --git a/skins/tree-house/article.ftl b/skins/tree-house/article.ftl
index 2aed695..bbc7b94 100644
--- a/skins/tree-house/article.ftl
+++ b/skins/tree-house/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/tree-house/author-articles.ftl b/skins/tree-house/author-articles.ftl
index bc73392..944ad71 100644
--- a/skins/tree-house/author-articles.ftl
+++ b/skins/tree-house/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/category-articles.ftl b/skins/tree-house/category-articles.ftl
index 1c40284..f013647 100644
--- a/skins/tree-house/category-articles.ftl
+++ b/skins/tree-house/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/common-comment.ftl b/skins/tree-house/common-comment.ftl
index c4dfc09..dc9ceaf 100644
--- a/skins/tree-house/common-comment.ftl
+++ b/skins/tree-house/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="${comment.oId}" class="comment">
     <div class="comment-panel">
         <div class="comment-top"></div>
diff --git a/skins/tree-house/css/tree-house.css b/skins/tree-house/css/tree-house.css
index 1769df9..823a55b 100644
--- a/skins/tree-house/css/tree-house.css
+++ b/skins/tree-house/css/tree-house.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin tree-house style
diff --git a/skins/tree-house/css/tree-house.min.css b/skins/tree-house/css/tree-house.min.css
index 7b18717..cd42fd9 100644
--- a/skins/tree-house/css/tree-house.min.css
+++ b/skins/tree-house/css/tree-house.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";body,html{min-width:948px}h5,img{font-size:12px}.comments-header,.header-navi{position:relative;z-index:10}.article-abstract,.comment-body{word-wrap:break-word;overflow:hidden}.comment-body td,.error-msg{white-space:normal}#sideNavi li,#sideNavi li>a,.article,.comment-body,img{overflow:hidden}body{background:url(../images/bg-tree.jpg) 50% 0 repeat-y #7BCCFF;color:#42423D}a,a:link,a:visited{color:#FFF;text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;vertical-align:middle;border:0;height:auto;-ms-interpolation-mode:bicubic}.wrapper{background:url(../images/bg-header.jpg) 50% 0 no-repeat}.bg-bottom{background:url(../images/bg-footer2.jpg) 50% 100% no-repeat}.content{margin:0 auto;width:948px}.header{height:476px;width:100%}.header-navi ul{list-style:none;margin-top:20px}.header-navi li{float:left}.header-navi .page-icon{float:left;height:14px;width:14px;margin:2px 3px 0 0}.header-title{color:#FFF;margin-left:146px;padding-top:222px;position:relative}#logoTitle{color:#FFF;font-size:52px;text-decoration:none}.header-title div{color:#696969;width:300px}.side{margin:0 0 0 -21px;width:256px}.body{min-height:643px;padding-bottom:682px}.main{width:634px}.footer{color:#e6e6fa;padding:12px;text-align:center}.footer a{font-weight:700}.article{width:553px}.article-header sup{color:red;font-size:12px}.article-header h2{color:#242323;font-weight:700;margin-left:6px;position:relative}.article-header h2 a{color:#242323;display:block;padding:3px 0 4px 10px;text-decoration:none}.article-header h2 a:hover{background-color:#242323;color:#EC0A8B}.article-info{margin:10px 0 0 9px;width:109px}.article-main{margin:10px 0 0 9px;min-height:150px;width:426px}.article-tags{background-color:#EC0A8B;float:left;font-style:normal;height:21px;line-height:21px;margin:0 10px 10px 0;padding:3px 10px}.article-abstract{color:#42423D;line-height:145%;padding:6px 10px 12px 0;text-align:justify}.main .line{background:url(../images/bg-branch.png) no-repeat;height:108px;width:575px}.article-date{background-color:#D4F2FB;border:6px solid #A8D3ED;border-radius:5px;margin-left:16px;padding:6px;width:65px}.article-comment{background:url(../images/bg-comments.png) no-repeat;font-size:12px;height:22px;margin:24px 0 0;padding:29px 0 0;text-align:center}.article-comment a{color:#42423D}.main h2.title{color:#FF9000;margin:-34px 0 12px;text-align:center}.main h2 span{color:#696969;float:right;font-size:12px;margin-top:7px;padding-right:10px}.article-body{line-height:145%;margin:0 12px 12px}.article-abstract a,.article-body a{color:#242323;text-decoration:underline}.comment-body,.comment-body a{color:#42423D}#sideNavi li>a,#tagsPanel .tagPanel,.article-details-footer .right a:hover{text-decoration:none}.article-footer{margin-right:12px}.article-details-footer a{line-height:16px}.article-details-footer{margin:36px 12px 0 0}.article-relative{line-height:145%;margin:12px 0}.comments{padding-left:99px;position:relative}.comments-header{background:url(../images/balloons.png) no-repeat;height:88px;left:100px;top:40px;width:440px}.comment-top{background:url(../images/bg-comments-top.png) no-repeat;height:22px}.comment-body{background:url(../images/bg-comments-body.png) repeat-y;margin-left:-1px;padding:0 27px 2px;width:401px}.comment-bottom{background:url(../images/bg-comments-bottom.png) no-repeat;height:23px}.comment-title{padding-bottom:6px}.comment-title a{color:#42423D;font-weight:700}.comment-body-ref{left:182px;opacity:.9;position:absolute;top:16px;z-index:16}#emotions img,#emotionsReply img{cursor:pointer;display:block;float:left;margin-right:2px}img.comment-picture{height:60px;padding:0 6px 4px 0;width:60px}.comment-reply{margin:0 auto 24px}#commentURL:focus,#commentURLReply:focus{box-shadow:-3px 1px 2px rgba(0,0,0,.3) inset}#comment,#commentReply{resize:vertical}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{background-image:url(../../../images/emotions/emotions.png);background-size:120px;margin-right:2px}.error-msg{color:#EC0A8B;font-weight:700}#sideNavi .line{background:url(../images/bg-branch-small.png) no-repeat;height:69px;margin-top:12px}#sideNavi .block{margin-left:64px}#sideNavi h3{background:url(../images/bg-heading.png) no-repeat;color:#EC0A8B;font-size:15px;height:30px;padding:38px 0 0 12px}#sideNavi .notice h3{background-image:url(../images/bg-heading-about-us.png)}#sideNavi #recentComments img{height:16px;vertical-align:middle;width:16px}#sideNavi #recentCommentsLabel{background-image:url(../images/bg-heading-portfolio.png)}#sideNavi .mostCommentArticles h3{background-image:url(../images/bg-heading-categories.png)}#sideNavi .mostViewCountArticles h3{background-image:url(../images/bg-heading-resources.png);margin-bottom:6px}#sideNavi .notice>div{margin:12px 12px 12px 17px}#sideNavi ul{margin-left:5px;width:182px;list-style:none}#sideNavi li{border-bottom:1px dotted #FFF;font-size:12px;margin-left:0;position:relative;text-overflow:ellipsis;-o-text-overflow:ellipsis;vertical-align:top}#sideNavi li:hover{background:url(../images/bg-menu-active.png) -8px -8px;color:#EC0A8B;font-weight:700}#sideNavi li:hover a{color:#EC0A8B;padding-left:24px}#sideNavi li>a{color:#42423D;line-height:29px;margin:0;padding-left:6px;white-space:nowrap;width:167px}#sideNavi li>a sup{margin-right:3px;line-height:12px;color:#EC0A8B}#sideNavi li>div{display:none}#sideNavi li p{display:inline}#sideNavi .popTags li>a{padding-left:40px;width:143px}#sideNavi .popTags li img{cursor:pointer;height:16px;left:19px;position:absolute;top:7px;width:16px}#sideNavi .popTags li:hover a{padding-left:46px;width:137px}#sideNavi .popTags li:hover img{left:25px}#statistic{height:138px;line-height:24px;margin:28px 0 0 80px}.pagination{margin:16px;text-align:center}.pagination a,.pagination a:visited{padding:0 3px}.pagination a.selected{color:#42423D;font-weight:700}#tagsPanel{width:553px}#tagsPanel .tagPanel{background-color:#EEE;border:2px solid;border-radius:6px;cursor:pointer;float:left;margin:3px}#tagsPanel .tagPanel:hover{background-color:transparent;border:2px dashed}.error-panel{padding:24px}.error-title{width:553px;background-color:#242323;color:#EC0A8B;display:block;padding:3px 10px 4px;position:relative}.goTopIcon{background-position:-128px -32px}.goBottomIcon{background-position:-144px -32px}
\ No newline at end of file
diff --git a/skins/tree-house/footer.ftl b/skins/tree-house/footer.ftl
index 64b8287..8dd612a 100644
--- a/skins/tree-house/footer.ftl
+++ b/skins/tree-house/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <span style="color: gray;">&copy; ${year}</span> - <a href="${servePath}">${blogTitle}</a>${footerContent}<br/>
 Powered by <a href="https://b3log.org" target="_blank">B3log 开源</a> • <a href="https://solo.b3log.org" target="_blank">Solo</a> ${version}&nbsp;&nbsp;
 Theme <a rel="friend" href="https://github.com/b3log/solo-skins" target="_blank">tree-house</a>
diff --git a/skins/tree-house/header.ftl b/skins/tree-house/header.ftl
index 7a5b34a..8df6f19 100644
--- a/skins/tree-house/header.ftl
+++ b/skins/tree-house/header.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="header-navi right">
     <ul>
         <#list pageNavigations as page>
diff --git a/skins/tree-house/index.ftl b/skins/tree-house/index.ftl
index ad10949..5c9d7ae 100644
--- a/skins/tree-house/index.ftl
+++ b/skins/tree-house/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/lang/lang_en_US.properties b/skins/tree-house/lang/lang_en_US.properties
index 714628c..5decba2 100644
--- a/skins/tree-house/lang/lang_en_US.properties
+++ b/skins/tree-house/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/tree-house/lang/lang_zh_CN.properties b/skins/tree-house/lang/lang_zh_CN.properties
index e125359..78d5852 100644
--- a/skins/tree-house/lang/lang_zh_CN.properties
+++ b/skins/tree-house/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/tree-house/macro-comments.ftl b/skins/tree-house/macro-comments.ftl
index 9ea49de..aa2dc40 100644
--- a/skins/tree-house/macro-comments.ftl
+++ b/skins/tree-house/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <div class="comments-header"></div>
 <div class="comments marginTop12" id="comments">
diff --git a/skins/tree-house/macro-head.ftl b/skins/tree-house/macro-head.ftl
index 0e4816f..ffbb6cf 100644
--- a/skins/tree-house/macro-head.ftl
+++ b/skins/tree-house/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/tree-house/page.ftl b/skins/tree-house/page.ftl
index 397f5c5..513567a 100644
--- a/skins/tree-house/page.ftl
+++ b/skins/tree-house/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/tree-house/side.ftl b/skins/tree-house/side.ftl
index 9c39e20..c16db7e 100644
--- a/skins/tree-house/side.ftl
+++ b/skins/tree-house/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div id="sideNavi">
     <div id="statistic">
         <div>
diff --git a/skins/tree-house/skin.properties b/skins/tree-house/skin.properties
index 21249c3..c739d34 100644
--- a/skins/tree-house/skin.properties
+++ b/skins/tree-house/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/tree-house/tag-articles.ftl b/skins/tree-house/tag-articles.ftl
index fd78e4b..0bc94e0 100644
--- a/skins/tree-house/tag-articles.ftl
+++ b/skins/tree-house/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/tree-house/tags.ftl b/skins/tree-house/tags.ftl
index 64ee27a..358dbb0 100644
--- a/skins/tree-house/tags.ftl
+++ b/skins/tree-house/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/archive-articles.ftl b/skins/yilia/archive-articles.ftl
index 2e29af6..3f2b4c8 100644
--- a/skins/yilia/archive-articles.ftl
+++ b/skins/yilia/archive-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/archives.ftl b/skins/yilia/archives.ftl
index 8664de5..2ce5a65 100644
--- a/skins/yilia/archives.ftl
+++ b/skins/yilia/archives.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/article-list.ftl b/skins/yilia/article-list.ftl
index 0af6bb0..440d498 100644
--- a/skins/yilia/article-list.ftl
+++ b/skins/yilia/article-list.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#list articles as article>
 <article>
     <header>
diff --git a/skins/yilia/article.ftl b/skins/yilia/article.ftl
index 4faecd7..5819904 100644
--- a/skins/yilia/article.ftl
+++ b/skins/yilia/article.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/yilia/author-articles.ftl b/skins/yilia/author-articles.ftl
index 41b0c09..bc25cf2 100644
--- a/skins/yilia/author-articles.ftl
+++ b/skins/yilia/author-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/category-articles.ftl b/skins/yilia/category-articles.ftl
index 60087c1..14e9f9e 100644
--- a/skins/yilia/category-articles.ftl
+++ b/skins/yilia/category-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/common-comment.ftl b/skins/yilia/common-comment.ftl
index d5415cb..b17d294 100644
--- a/skins/yilia/common-comment.ftl
+++ b/skins/yilia/common-comment.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <li id="${comment.oId}">
     <img class="avatar" title="${comment.commentName}" src="${comment.commentThumbnailURL}">
     <div class="content">
diff --git a/skins/yilia/css/yilia.css b/skins/yilia/css/yilia.css
index 67042e5..6962238 100644
--- a/skins/yilia/css/yilia.css
+++ b/skins/yilia/css/yilia.css
@@ -1,19 +1,20 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
- 
 @charset "utf-8";
 /*
  * skin yilia style
diff --git a/skins/yilia/css/yilia.min.css b/skins/yilia/css/yilia.min.css
index 712a21e..4ad0125 100644
--- a/skins/yilia/css/yilia.min.css
+++ b/skins/yilia/css/yilia.min.css
@@ -1,16 +1,18 @@
 /**
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 @charset "utf-8";body,html{height:100%;max-height:100%}body,dl,h1,h2,h3,h4,h5,h6,ol,p,ul{text-rendering:geometricPrecision}dl dd,dl dt{margin-bottom:1em}body,li li{margin:0}blockquote cite,dl dt{font-weight:700}.fn-left,dl dt{float:left}.form button,a,blockquote{transition:all .3s ease}.classify li,.comments,.content-reset li.task-list-item,.dynamic li,.side nav ul{list-style:none}html{font-size:16px;-webkit-tap-highlight-color:transparent}body{font-family:"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif;letter-spacing:.01rem;font-size:100%;line-height:1.75em;color:rgba(0,0,0,.6);-webkit-font-feature-settings:'kern' 1;-moz-font-feature-settings:'kern' 1;-o-font-feature-settings:'kern' 1;background-color:#eaeaea}::-moz-selection{background:#D6EDFF}::selection{background:#D6EDFF}a{text-decoration:none;color:#258fb8;outline:0}h1,h2,h3,h4,h5,h6{-webkit-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;-moz-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;-o-font-feature-settings:'dlig' 1,'liga' 1,'lnum' 1,'kern' 1;color:#666;line-height:1.15em;font-family:"Open Sans","Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif}h1{letter-spacing:-2px;text-indent:-3px}h2{letter-spacing:-1px}img{max-width:100%}dl,ol,p,ul{-webkit-font-feature-settings:'liga' 1,'onum' 1,'kern' 1;-moz-font-feature-settings:'liga' 1,'onum' 1,'kern' 1;-o-font-feature-settings:'liga' 1,'onum' 1,'kern' 1}ol,ul{padding-left:3rem}ol ol,ol ul,ul ol,ul ul{padding-left:2em}dl dt{width:180px;overflow:hidden;clear:left;text-align:right;text-overflow:ellipsis;white-space:nowrap}dl dd{margin-left:200px}hr{display:block;height:1px;border:0;border-top:#EFEFEF 1px solid;margin:3.2em 0;padding:0}blockquote{box-sizing:border-box;margin:1.75em 0;padding:0 0 0 1.75em;border-left:5px solid}blockquote:hover{border-color:#b0a0aa}blockquote p{margin:.8em 0;font-style:italic}blockquote small{display:inline-block;margin:.8em 0 .8em 1.5em;font-size:.9em;color:#CCC}blockquote small:before{content:"\2014 \00A0"}blockquote cite a{font-weight:400}mark{background-color:#fdffb6}code,tt{padding:1px 3px;font-family:Inconsolata,monospace,"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif;font-size:.85em;white-space:pre-wrap;border:1px solid #E3EDF3;background:#F7FAFB;border-radius:2px}pre{font-size:.9em}pre code,pre tt{font-size:inherit;white-space:pre-wrap;background:0 0;border:none;padding:0}.fn-clear:after,.fn-clear:before{display:table;content:""}.fn-clear:after{clear:both}.fn-right{float:right}.fn-none{display:none}@font-face{font-family:icomoon;src:url(fonts/icomoon.eot?3js4w7);src:url(fonts/icomoon.eot?3js4w7#iefix) format('embedded-opentype'),url(fonts/icomoon.ttf?3js4w7) format('truetype'),url(fonts/icomoon.woff?3js4w7) format('woff'),url(fonts/icomoon.svg?3js4w7#icomoon) format('svg');font-weight:400;font-style:normal}[class*=" icon-"],[class^=icon-]{font-family:icomoon;speak:none;font-style:normal;font-weight:400;font-variant:normal;text-transform:none;line-height:1;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;vertical-align:middle}.content-reset,.form button,.form input,.form textarea{font-family:"Helvetica Neue","Luxi Sans","DejaVu Sans",Tahoma,"Hiragino Sans GB","Microsoft Yahei",sans-serif}.icon-tag:before{content:"\e903"}.icon-date:before{content:"\e902"}.icon-github:before{content:"\e900"}.icon-rss:before{content:"\e901"}.icon-register:before{content:"\e600"}.icon-logout:before{content:"\e601"}.icon-setting:before{content:"\e602"}.icon-gplus:before{content:"\e603"}.icon-weibo:before{content:"\e605"}.icon-goup:before{content:"\e60a"}.icon-twitter:before{content:"\e60b"}.icon-t-weibo:before{content:"\e60d"}.icon-login:before{content:"\e611"}.form{width:100%;padding:30px}#captcha,#captchaReply{height:27px;display:inline-block;vertical-align:inherit}.form button,.form input,.form textarea{border:1px solid #CCC;background-color:#FAFAFA;border-radius:3px;box-shadow:0 1px 2px rgba(0,0,0,.075) inset;padding:7px 8px;width:100%;box-sizing:border-box;font-size:14px;outline:0}.form button{width:auto;vertical-align:bottom;cursor:pointer}.form button:hover{background-color:#b0a0aa;color:#FFF;box-shadow:0 0 0;border-color:#b0a0aa}.form input:focus,.form textarea:focus{background-color:#FFF;box-shadow:0 1px 2px rgba(0,0,0,.075) inset,0 0 5px rgba(176,160,170,.5);border:1px solid #b0a0aa}.content-reset h1,.content-reset h2{padding-bottom:.3em;border-bottom:1px solid #eee}.content-reset{word-wrap:break-word;overflow:auto;line-height:1.65;font-size:16px;word-break:break-all}.content-reset ol,.content-reset ul{padding-left:2em;margin-top:0;margin-bottom:16px}.content-reset li{margin-top:.25em}.content-reset img{cursor:zoom-in}.editor-panel .content-reset img,img.emoji{cursor:auto}.content-reset h1,.content-reset h2,.content-reset h3,.content-reset h4,.content-reset h5,.content-reset h6{margin-top:24px;margin-bottom:16px;font-weight:600;line-height:1.25}.content-reset h1{font-size:2em}.content-reset h2{font-size:1.5em}.content-reset h3{font-size:1.25em}.content-reset h4{font-size:1em}.content-reset h5{font-size:.875em}.content-reset h6{font-size:.85em}.content-reset hr{height:.25em;padding:0;margin:24px 0;background-color:#e7e7e7;border:0}.content-reset p{margin-top:0;margin-bottom:16px}.content-reset blockquote{padding:0 1em;color:#777;border-left:.25em solid #ddd;margin-bottom:16px}.content-reset blockquote p{margin:0}.content-reset iframe{border:1px solid rgba(0,0,0,.38)}.content-reset table{width:100%;border:1px solid #dedede;margin:15px auto;border-collapse:collapse;empty-cells:show}.content-reset thead{text-align:center}.content-reset td,.content-reset th{height:35px;border:1px solid #dedede;padding:0 10px}.content-reset th{font-weight:700;text-align:center!important;background:rgba(158,188,226,.2)}.content-reset tbody tr:nth-child(2n){background:rgba(158,188,226,.12)}.content-reset tr:hover{background:#efefef}.content-reset code{padding:.2em .4em;margin:0;font-size:85%;background-color:rgba(252,41,41,.12);border-radius:3px;color:#d23f31;font-family:mononoki,Consolas,"Liberation Mono",Menlo,Courier,monospace;word-break:break-word}.content-reset pre>code{padding:.5em;color:rgba(0,0,0,.87);background-color:rgba(0,0,0,.04);background-image:url(../images/code-bg.png);background-size:20px 20px;border-radius:5px}.content-reset kbd{display:inline-block;padding:3px 5px;font:11px Consolas,"Liberation Mono",Menlo,Courier,monospace;line-height:10px;color:#555;vertical-align:middle;background-color:#fcfcfc;border:1px solid rgba(0,0,0,.38);border-bottom-color:#bbb;border-radius:3px;box-shadow:inset 0 -1px 0 #bbb}.tags .tag,footer.footer{font-family:Menlo,Monaco,"Andale Mono","lucida console","Courier New",monospace}.content-reset li.task-list-item>input{margin-left:-2em;vertical-align:middle}.em00,.em01,.em02,.em03,.em04,.em05,.em06,.em07,.em08,.em09,.em10,.em11,.em12,.em13,.em14{cursor:pointer;background-image:url(../../../images/emotions/emotions.png);background-size:120px;float:left;height:24px;margin-right:5px;width:24px;transition:all .2s ease-out;-webkit-transition:all .2s ease-out;-moz-transition:all .2s ease-out}#emotions span:hover,#emotionsReply span:hover{transform:scale(1.2) rotate(360deg);-webkit-transform:scale(1.2) rotate(360deg);-moz-transform:scale(1.2) rotate(360deg)}.em01{background-position:-24px 0}.em02{background-position:-48px 0}.em03{background-position:-72px 0}.em04{background-position:-96px 0}.em05{background-position:0 -24px}.em06{background-position:-24px -24px}.em07{background-position:-48px -24px}.em08{background-position:-72px -24px}.em09{background-position:-96px -24px}.em10{background-position:0 -48px}.em11{background-position:-24px -48px}.em12{background-position:-48px -48px}.em13{background-position:-72px -48px}.em14{background-position:-96px -48px}.side{position:fixed;background-color:#FFF;height:100%;width:300px}.side a{color:#696969;font-size:30px}.side .toc a,.side .toc-btn,.side nav a{font-size:14px}.side .toc a:hover,.side a:hover{color:#b0a0aa}.side .overlay{height:180px;background-color:#000;position:absolute;opacity:.7;width:100%}.side .content{width:76%;text-align:center;margin:112px auto 0;position:relative;z-index:1}.side .toc,.side footer,main{position:absolute}.side .avatar{display:block;border:5px solid #fff;border-radius:50%;width:128px;height:128px;margin:0 auto;transition:all .1s ease-in}.side .avatar:hover{border-color:rgba(37,143,184,.6)}.side hgroup h1{margin:10px 0;line-height:30px}.side .subtitle{color:#999;font-size:14px;line-height:25px}.side nav ul{margin:0;padding:0}.side nav .page-icon{height:16px;width:16px;margin:0 3px 0 0;vertical-align:-2px}.side footer{bottom:15px;width:228px;text-align:center;left:50%;margin-left:-114px}.side footer>div{margin-bottom:10px}.side .toc-btn{float:right;margin:0 10px;display:none}.side .toc{height:100%;width:300px;top:0;left:0;z-index:10;overflow:hidden;background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEgAAABIAgMAAAAog1vUAAAACVBMVEUAAAABAQETExM20mnVAAAAA3RSTlMOECJvSrphAAABBElEQVR4AWyRwQ3CQAwEJ5/rIVQTyuAfHunmXlRAoaxkMfJJkQ4Dznl3x+G4xlzOxvZ5vZdzMJ7fx3Im+7a2jpNzrINzZ+6r/DnIp7dyg9zsg9Ehel0+bsS1t5KJZOuDSU4Iunz4qC8BU6nLAqZSkgKmUsYCplLxBEylIARMxV8+w/sqoKo+6G0aTGhm5JAM//gARxxHYU3Q3igY0sCIIhYCC49rcUW4PBeJK3bd+CIKsDle8H91N62bwTv5Xxv1QQAAAAQQsH9rAU6DH3CIG9WFbm2Pcyf00PcOn3avFYDDRJgOOcE8fIX8VFCY00r5TlFFPt2NwqXDwFyGjNUlzfBdHo1oSKi9zm79GKMAAAAASUVORK5CYII=) #5d5d5d}.side .toc li{border-bottom:1px solid #717171;border-top:1px solid #5d5d5d}.side .toc a{color:#e5e5e5;display:block}.side .b3-solo-list{padding:0;margin-top:50px}.abstract .b3-solo-list{display:none}.side .toc .close{color:#fff;float:right;padding:0 10px}main{right:0;min-height:100%;background:#eaeaea;left:300px;width:auto}article{margin:30px;border:1px solid #ddd;background:#fff;position:relative;transition:all .2s ease-in;visibility:hidden}.share span,.tags .avatar{transition:all .2s ease-out 0s}article.post,article.show{visibility:visible}article.show{-webkit-animation:bounce .6s;animation:bounce .6s}@-webkit-keyframes bounce{0%{opacity:0;-webkit-transform:scale(1)}60%{opacity:1;-webkit-transform:scale(1.02)}100%{-webkit-transform:scale(1)}}@-moz-keyframes bounce{0%{opacity:0;-moz-transform:scale(1)}60%{opacity:1;-moz-transform:scale(1.02)}100%{-moz-transform:scale(1)}}.tags .tag:hover,article .abstract a:hover,nav.pagination a.page-num:hover{opacity:.7}article header{border-left:5px solid;padding:15px 30px 15px 25px}article header:hover{border-color:#b0a0aa}article header h2{margin:0;font-size:26px;padding-right:110px}article header a{color:#696969;margin-left:0;font-weight:300;line-height:35px}article header a:hover{color:#b0a0aa}article header sup{font-size:14px;font-weight:400;color:#999}article header time{font-size:14px;position:absolute;right:30px;color:#aaa;top:18px}article .abstract{line-height:1.8em;padding-right:30px;padding-left:30px;overflow:hidden;word-wrap:break-word}article footer{padding:20px 35px 0 0;margin:30px 30px 20px;border-top:1px solid #ddd}.tags .avatar{width:20px;border-radius:10px;right:30px;position:absolute;bottom:25px}.share span{cursor:pointer}.share span:hover,.tags .avatar:hover{transform:rotate(360deg);color:#333}.tags .tag{color:#fff;font-size:10px;height:18px;line-height:18px;display:inline-block;padding:0 5px 0 10px;position:relative;border-radius:0 5px 5px 0;margin:5px 9px 5px 8px;background-color:#7b5d5f}.tags .tag:after,.tags .tag:before{content:" ";position:absolute}.tags .tag:before{width:0;height:0;top:0;left:-18px;border:9px solid transparent;border-right-color:#7b5d5f}.tags .tag:after{width:4px;height:4px;background-color:#fff;border-radius:4px;box-shadow:0 0 0 1px rgba(0,0,0,.3);top:7px;left:2px}a.color1.tag{background:#ff945c}a.color1.tag:before{border-right-color:#ff945c}a.color2.tag{background:#f5c7b7}a.color2.tag:before{border-right-color:#f5c7b7}a.color3.tag{background:#ba8f6c}a.color3.tag:before{border-right-color:#ba8f6c}a.color4.tag{background:#cfb7c4}a.color4.tag:before{border-right-color:#cfb7c4}nav.pagination{text-align:center;margin-top:30px}nav.pagination .page-num{width:20px;height:20px;background:#4d4d4d;border-radius:50%;display:inline-block;color:#fff;line-height:20px;font-size:12px;margin:0 3px 30px}nav.pagination .page-num.current{background:#88acdb}nav.pagination .extend{color:#4d4d4d;margin:0 27px;opacity:0}nav.pagination .extend:hover{color:#b0a0aa}nav.pagination:hover .extend{opacity:1}.post .tags .avatar{bottom:inherit;margin-top:4px}.post section.tags{margin:0}.post header{padding-bottom:0}.post .share{padding:10px 0 0;margin-top:15px;font-size:14px}.post aside a{color:#DDD}.post aside a>strong{background:#ddd;color:#fff;border-radius:50%;width:16px;height:16px;display:inline-block;transition:background .3s;vertical-align:middle;line-height:14px;text-align:center}.post aside a:hover{color:#4d4d4d}.post aside a:hover>strong{background-color:#4d4d4d}.comments{margin:60px 60px 0 50px;padding:0;position:relative}.comments li{margin-bottom:30px;padding-bottom:30px;border-bottom:1px solid #ddd}.comments li time{border-left:1px solid #d5dbde;padding-left:10px;margin-left:10px}.comments .avatar{position:absolute;height:60px;width:60px;border-radius:50%;border:3px solid #FFF}.comments .content{margin-left:80px;min-height:66px}.comments .post-meta{margin-bottom:9px}.comments .content img{vertical-align:sub}.comments li.comment-body-ref{position:absolute;background-color:#FFF;width:80%;margin-left:80px;padding:10px;border:1px solid #ddd}footer.footer{line-height:1rem;font-size:12px;text-shadow:0 1px #fff;opacity:.6;margin:0 30px 30px}footer.footer .icon-goup{position:fixed;bottom:35px;right:5px;-webkit-animation:upbounce 4s 2s infinite;animation:upbounce 4s 2s infinite;z-index:10;font-size:20px;cursor:pointer;color:#b0a0aa;transition:all .3s ease}footer.footer .icon-goup:hover{color:#4a4a4a}@-webkit-keyframes upbounce{0%,10%,25%,40%,50%{-webkit-transform:translateY(0);transform:translateY(0)}20%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}30%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}@keyframes upbounce{0%,100%,20%,50%,80%{-webkit-transform:translateY(0);transform:translateY(0)}40%{-webkit-transform:translateY(-10px);transform:translateY(-10px)}60%{-webkit-transform:translateY(-5px);transform:translateY(-5px)}}.classify li{font-size:20px;float:left;margin:0 30px 20px 0}.classify .tags .tag{font-size:20px;padding:10px}.classify .tags .tag:before{left:-38px;border-width:19px}.classify .tags .tag:after{top:15px;left:-6px;width:8px;height:8px}.classify-name{font-size:18px;margin:30px}.dynamic .comments li:last-child{border-bottom-width:0}@media only screen and (max-width:500px){.side,.side .avatar{position:relative}.side{height:auto;width:100%}.side footer,main{position:initial}.side .content{margin-top:0;padding-top:20px}.side .overlay{height:100px;z-index:0}.side nav{display:none}.side footer{margin:10px auto;padding-bottom:16px}article{margin:10px}.comments{margin:20px 20px 0}footer.footer{text-align:center}footer.footer .fn-right{float:none;display:block}}
\ No newline at end of file
diff --git a/skins/yilia/dynamic.ftl b/skins/yilia/dynamic.ftl
index 76ca1c2..643bc6f 100644
--- a/skins/yilia/dynamic.ftl
+++ b/skins/yilia/dynamic.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/footer.ftl b/skins/yilia/footer.ftl
index 1f66336..39b95e4 100644
--- a/skins/yilia/footer.ftl
+++ b/skins/yilia/footer.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <footer class="footer">
     <div class="fn-clear">
         <div class="fn-left">
diff --git a/skins/yilia/index.ftl b/skins/yilia/index.ftl
index 21c07c9..84942dd 100644
--- a/skins/yilia/index.ftl
+++ b/skins/yilia/index.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/js/yilia.js b/skins/yilia/js/yilia.js
index a9b5b63..976e5fe 100644
--- a/skins/yilia/js/yilia.js
+++ b/skins/yilia/js/yilia.js
@@ -1,17 +1,19 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 /**
  * @fileoverview util and every page should be used.
diff --git a/skins/yilia/js/yilia.min.js b/skins/yilia/js/yilia.min.js
index aecf5ed..1f8f534 100644
--- a/skins/yilia/js/yilia.min.js
+++ b/skins/yilia/js/yilia.min.js
@@ -1,16 +1,18 @@
 /*
+ * Solo - A beautiful, simple, stable, fast Java blogging system.
  * Copyright (c) 2010-2018, b3log.org & hacpai.com
  *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
  *
- *     http://www.apache.org/licenses/LICENSE-2.0
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
  *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 var Yilia={init:function(){Util.killIE(),this._initToc(),this.resetTags(),$(window).scroll(function(){$("article").length>0&&0===$("article.post").length&&$("article:not(.show)").each(function(){$(this).offset().top<=$(window).scrollTop()+$(window).height()-$(this).height()/7&&$(this).addClass("show")}),$(window).scrollTop()>$(window).height()?$(".icon-goup").show():$(".icon-goup").hide(),1===$("article.post").length&&$("article.post").addClass("show")}),$(window).scroll()},_initToc:function(){if(0===$(".b3-solo-list li").length)return!1;$(".side footer").after('<div class="toc"><a onclick="$(\'.side .toc\').hide();" href="javascript:void(0)" class="close">X</a></div>'),$(".side .toc a").after($(".b3-solo-list")),$(".side .toc-btn").show()},resetTags:function(){$("a.tag").each(function(t){$(this).addClass("color"+Math.ceil(4*Math.random()))})},share:function(){$(".share span").click(function(){var t=$(this).data("type"),i=encodeURIComponent($("title").text()),o=$(".post-title a").attr("href")?$(".post-title a").attr("href"):location,e=$(".post-content img:eq(0)").attr("src"),s={};s.tencent="http://share.v.t.qq.com/index.php?c=share&a=index&title="+i+"&url="+o+"&pic="+e,s.weibo="http://v.t.sina.com.cn/share/share.php?title="+i+"&url="+o+"&pic="+e,s.google="https://plus.google.com/share?url="+o,s.twitter="https://twitter.com/intent/tweet?status="+i+" "+o,window.open(s[t],"_blank","top=100,left=200,width=648,height=618")})}};Yilia.init();
\ No newline at end of file
diff --git a/skins/yilia/lang/lang_en_US.properties b/skins/yilia/lang/lang_en_US.properties
index 767dd36..9dd533b 100644
--- a/skins/yilia/lang/lang_en_US.properties
+++ b/skins/yilia/lang/lang_en_US.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/yilia/lang/lang_zh_CN.properties b/skins/yilia/lang/lang_zh_CN.properties
index 8c4b233..6b446d7 100644
--- a/skins/yilia/lang/lang_zh_CN.properties
+++ b/skins/yilia/lang/lang_zh_CN.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/yilia/links.ftl b/skins/yilia/links.ftl
index fcff5c0..0b84f42 100644
--- a/skins/yilia/links.ftl
+++ b/skins/yilia/links.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/macro-comments.ftl b/skins/yilia/macro-comments.ftl
index a6f85f6..53d76d4 100644
--- a/skins/yilia/macro-comments.ftl
+++ b/skins/yilia/macro-comments.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro comments commentList article>
 <ul class="comments" id="comments">
     <#list commentList as comment>
diff --git a/skins/yilia/macro-head.ftl b/skins/yilia/macro-head.ftl
index 5653c5f..0e48670 100644
--- a/skins/yilia/macro-head.ftl
+++ b/skins/yilia/macro-head.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#macro head title>
 <meta charset="utf-8" />
 <title>${title}</title>
diff --git a/skins/yilia/page.ftl b/skins/yilia/page.ftl
index f873ef9..51d6796 100644
--- a/skins/yilia/page.ftl
+++ b/skins/yilia/page.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <#include "macro-comments.ftl">
 <!DOCTYPE html>
diff --git a/skins/yilia/side.ftl b/skins/yilia/side.ftl
index 29bc388..275b2bd 100644
--- a/skins/yilia/side.ftl
+++ b/skins/yilia/side.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <div class="side">
     <div class="overlay">
         <a onclick="$('.side .toc').show()" href="javascript:void(0)" class="toc-btn">${tocLabel}</a>
diff --git a/skins/yilia/skin.properties b/skins/yilia/skin.properties
index 2c0b3bd..90cf062 100644
--- a/skins/yilia/skin.properties
+++ b/skins/yilia/skin.properties
@@ -1,17 +1,19 @@
 #
+# Solo - A beautiful, simple, stable, fast Java blogging system.
 # Copyright (c) 2010-2018, b3log.org & hacpai.com
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
 #
-#     http://www.apache.org/licenses/LICENSE-2.0
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
 #
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 #
 
 #
diff --git a/skins/yilia/tag-articles.ftl b/skins/yilia/tag-articles.ftl
index c6760c7..6872545 100644
--- a/skins/yilia/tag-articles.ftl
+++ b/skins/yilia/tag-articles.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
diff --git a/skins/yilia/tags.ftl b/skins/yilia/tags.ftl
index 877ea26..56a278f 100644
--- a/skins/yilia/tags.ftl
+++ b/skins/yilia/tags.ftl
@@ -1,3 +1,22 @@
+<#--
+
+    Solo - A beautiful, simple, stable, fast Java blogging system.
+    Copyright (c) 2010-2018, b3log.org & hacpai.com
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+-->
 <#include "macro-head.ftl">
 <!DOCTYPE html>
 <html>
