shuttle: update icons

Author: frankiefu

shiny/Shuttle-v2/assets/ic_arrow_triangledown_darkreg.png

@@ -109,8 +109,8 @@
           filteredStops="{{filteredStops}}" selectedFilteredStop="{{selectedFilteredStop}}"></shuttle-map>
 
       <polymer-ui-tabs id="tabbar" theme="polymer-ui-light-theme" selected="{{tabSelected}}">
-        <div name="schedule" flex?="{{queryMatches}}"><polymer-ui-icon icon="time"></polymer-ui-icon></div>
-        <div name="favorites" flex?="{{queryMatches}}"><polymer-ui-icon icon="favorite"></polymer-ui-icon></div>
+        <div name="schedule" flex?="{{queryMatches}}"><polymer-ui-icon src="assets/ic_schedule_darkreg.png"></polymer-ui-icon></div>
+        <div name="favorites" flex?="{{queryMatches}}"><polymer-ui-icon src="assets/ic_favorite_darkreg.png"></polymer-ui-icon></div>
       </polymer-ui-tabs>
     </div>
   </template>

shiny/Shuttle-v2/assets/ic_check_darkreg.png

@@ -120,7 +120,7 @@
           <template repeat="{{groups}}">
             <polymer-ui-collapsible active="{{active}}" class="group">
               <div class="polymer-ui-collapsible-header group-header">
-                <polymer-ui-icon-button icon="dropdown" class="{{active: active}}"></polymer-ui-icon-button>
+                <polymer-ui-icon-button icon="dropdown" src="assets/ic_arrow_triangledown_darkreg.png" class="{{active: active}}"></polymer-ui-icon-button>
                 {{name}}
               </div>
               <template repeat="{{stops}}">