Adds window load listener to handle icon font visibility while it's not ready.

src/admin/js/main.js

@@ -102,4 +102,23 @@ new Vue({
     store,
     router,
     render: h => h(AdminPage)
-});
+});
+
+// Display Icons only once everything is loaded 
+function listen(evnt, elem, func) {
+    if (elem.addEventListener)  // W3C DOM
+        elem.addEventListener(evnt,func,false);
+    else if (elem.attachEvent) { // IE DOM
+         var r = elem.attachEvent("on"+evnt, func);
+         return r;
+    }
+    else {
+        jQuery('head').append('<style>.tainacan-icon{ opacity: 1 !important; }</style>');
+    }
+}
+listen("load", window, function() {
+    var iconsStyle = document.createElement("style");
+    iconsStyle.setAttribute('type', 'text/css');
+    iconsStyle.innerText = '.tainacan-icon{ opacity: 1 !important; }';
+    document.head.appendChild(iconsStyle);
+});

src/admin/js/theme-main.js

@@ -129,4 +129,23 @@ export const ThemeItemsListing =  new Vue({
 
     }
     
-});
+});
+
+// Display Icons only once everything is loaded 
+function listen(evnt, elem, func) {
+    if (elem.addEventListener)  // W3C DOM
+        elem.addEventListener(evnt,func,false);
+    else if (elem.attachEvent) { // IE DOM
+         var r = elem.attachEvent("on"+evnt, func);
+         return r;
+    }
+    else {
+        jQuery('head').append('<style>.tainacan-icon{ opacity: 1 !important; }</style>');
+    }
+}
+listen("load", window, function() {
+    var iconsStyle = document.createElement("style");
+    iconsStyle.setAttribute('type', 'text/css');
+    iconsStyle.innerText = '.tainacan-icon{ opacity: 1 !important; }';
+    document.head.appendChild(iconsStyle);
+});

src/admin/scss/tainacan-admin.scss

@@ -51,6 +51,9 @@ html {
 }
 
 // Tainacan Loading
+.tainacan-icon {
+    opacity: 0; // Will make it 1 once window.load is done; 
+}
 .loading-overlay {
     z-index: 9999999999;
 }

src/admin/theme-items-list.vue

@@ -67,6 +67,10 @@ export default {
         display: flex;
         -webkit-overflow-scrolling: touch;
 
+        .tainacan-icon {
+            opacity: 0; // Will make it 1 once window.load is done; 
+        }
+
         a, a:not([href]){ color: $secondary }
         a:hover, a:hover:not([href]) {
             cursor: pointer;