anchor.diff:    //         key: 'Help & Feedback',
     //         icon: 'action/help',
     //         children: [new Text('Help & Feedback')])
  -  //     ]
  -  //   );
  -  // }
  +  //    ]
  +    );
  +  }
   
     UINode buildToolBar() {
       return new ToolBar(
           left: new IconButton(
             icon: 'navigation/menu_white',
  -          onGestureTap: (_) => true), // _drawerController.toggle),
  +          onGestureTap: (_) => _drawerController.toggle),
           center: new Text('Stocks'),
           right: [
             new IconButton(
  
positive.code: 
    // static FlexBoxParentData _flex1 = new FlexBoxParentData()..flex = 1;
  
    // Drawer buildDrawer() {
    //   return new Drawer(
    //     controller: _drawerController,
    //     level: 3,
    //     children: [
    //       new DrawerHeader(children: [new Text('Stocks')]),
    //       new MenuItem(
  
negative.code:     });
    }
  
    DrawerController _drawerController;
    bool _drawerShowing = false;
  
    void _handleDrawerStatusChanged(bool showing) {
  