https://github.com/b3log/solo/issues/12345

Andrea/css/Andrea.css

@@ -17,7 +17,7 @@
  * skin andrea style
  *
  * @author <a href="mailto:LLY219@gmail.com">Liyuan Li</a>
- * @version 1.0.0.9, May 15, 2012
+ * @version 1.1.0.0, Sep 21, 2017
 */
 body {
     background-image: url("../images/bg-grey.jpg");
@@ -400,6 +400,11 @@ a:hover {
     list-style-type: none;
 }
 
+.side-tool .page-icon {
+    height: 14px;
+    width: 14px;
+}
+
 #greyBG, #brownBG, #blueBG {
     background-position: -103px 0;
     display: block;

Andrea/side-tool.ftl

@@ -5,7 +5,7 @@
                 <#list pageNavigations as page>
                 <li>
                     <a href="${page.pagePermalink}" target="${page.pageOpenTarget}" title="${page.pageTitle}">
-                        ${page.pageTitle}
+                        <#if page.pageIcon != ''><img class="page-icon" src="${page.pageIcon}"></#if>${page.pageTitle}
                     </a>
                 </li>
                 </#list>