Material and RaisedButton.

sky/sdk/lib/framework/widgets/popup_menu.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 'dart:async';
 import 'dart:math' as math;
 import 'dart:sky' as sky;
 
 import '../animation/animated_value.dart';
 import '../painting/box_painter.dart';
 import '../theme2/colors.dart';
 import '../theme2/shadows.dart';
 import 'animated_component.dart';
-import 'material.dart';
 import 'popup_menu_item.dart';
 import 'wrappers.dart';
 
 const double _kMenuOpenDuration = 300.0;
 const double _kMenuCloseDuration = 200.0;
 const double _kMenuCloseDelay = 100.0;
 
 enum MenuState { hidden, opening, open, closing }
 
 class PopupMenuController {
@@ skipping 28 matching lines @@
   }
 }
 
 class PopupMenu extends AnimatedComponent {
 
   PopupMenu({ Object key, this.controller, this.items, this.level })
       : super(key: key) {
     _painter = new BoxPainter(new BoxDecoration(
       backgroundColor: Grey[50],
       borderRadius: 2.0,
-      boxShadow: Shadow[level]));
+      boxShadow: shadows[level]));
 
     animate(controller.position, (double value) {
       _position = value;
     });
   }
 
   PopupMenuController controller;
   List<List<UINode>> items;
   int level;
 
@@ skipping 36 matching lines @@
           child: new Container(
             padding: const EdgeDims.all(8.0),
             child: new Block(children)
           )
         )
       )
     );
   }
 
 }