enable use random pure color background for index page

web/src/assets/iconfont/iconfont.css

@@ -1,8 +1,8 @@
 @font-face {
   font-family: "iconfont"; /* Project id 4125778 */
-  src: url('iconfont.woff2?t=1721292490257') format('woff2'),
-       url('iconfont.woff?t=1721292490257') format('woff'),
-       url('iconfont.ttf?t=1721292490257') format('truetype');
+  src: url('iconfont.woff2?t=1721356513025') format('woff2'),
+       url('iconfont.woff?t=1721356513025') format('woff'),
+       url('iconfont.ttf?t=1721356513025') format('truetype');
 }
 
 .iconfont {
@@ -13,6 +13,10 @@
   -moz-osx-font-smoothing: grayscale;
 }
 
+.icon-app:before {
+  content: "\e64f";
+}
+
 .icon-pause:before {
   content: "\e693";
 }

web/src/assets/iconfont/iconfont.json

@@ -5,6 +5,13 @@
   "css_prefix_text": "icon-",
   "description": "",
   "glyphs": [
+    {
+      "icon_id": "1503777",
+      "name": "应用",
+      "font_class": "app",
+      "unicode": "e64f",
+      "unicode_decimal": 58959
+    },
     {
       "icon_id": "7156146",
       "name": "暂停",