Clean up stock_app.dart

sky/framework/components/menu_item.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import '../fn.dart';
 import 'button_base.dart';
 import 'icon.dart';
 import 'ink_well.dart';
 
 class MenuItem extends ButtonBase {
@@ skipping 25 matching lines @@
 
   List<Node> children;
   String icon;
 
   MenuItem({ Object key, this.icon, this.children }) : super(key: key);
 
   Node buildContent() {
     return new InkWell (
       style: highlight ? _highlightStyle : _style,
       children: [
-        new Icon(
-          style: _iconStyle,
-          size: 24,
-          type: "${icon}_grey600"
+        new StyleNode(
+          new Icon(
+            size: 24,
+            type: "${icon}_grey600"
+          ),
+          _iconStyle
         ),
         new Container(
           style: _labelStyle,
           children: children
         )
       ]
     );
   }
 }