Improve the UI with FontAwesome icons

customize.dist/DecorateToolbar.js

@@ -8,11 +8,18 @@ define([
 ], function (LS, Messages) {
     var $ = window.jQuery;
     var main = function () {
+        var url = window.location.pathname;
+        var isHtml = /\.html/.test(url) || url === '/';
         $.ajax({
-            url: '/customize/BottomBar.html',
+            url: isHtml ? '/customize/BottomBar.html' : '/customize/Header.html',
             success: function (ret) {
                 $('iframe').height('96%');
-                $('body').append(ret);
+                if (isHtml) {
+                    $('body').append(ret);
+                }
+                else {
+                    $('body').prepend(ret);
+                }
                 $('head').append($('<link>', {
                     rel: 'stylesheet',
                     href: '/customize/main.css'