fixed user-icons in chat taskbar

lib/persona.js

@@ -51,7 +51,13 @@ $(document).ready(function() {
 			$.getJSON(config.relative_path + '/api/user/' + utils.slugify(data.options.title), function(user) {
 				var el = $('#taskbar [data-uuid="' + data.uuid + '"] a');
 				el.find('i').remove();
+				if (user.picture) {
 					el.css('background-image', 'url(' + user.picture + ')');
+				} else {
+					el	.css('background-color', user['icon:bgColor'])
+						.text(user['icon:text'])
+						.addClass('user-icon');
+				}
 			});
 		}
 

modules/taskbar.less

@@ -84,6 +84,9 @@
 
 			&.taskbar-chat {
 				a, a:hover, a:focus, a:active {
+					.user-icon-style(50px, 2.4rem, 50%) !important;
+					padding: 0;
+					color: white;
 					background: none;
 					background-size: cover;