anchor.diff:    ),
     new GalleryItem(
       title: 'Text fields',
  -    subtitle: 'A Single line of editable text',
  +    subtitle: 'Single line of editable text and numbers',
       routeName: TextFieldDemo.routeName,
       buildRoute: (BuildContext context) => new TextFieldDemo()
     ),
     new GalleryItem(
       title: 'Time picker',
  -    subtitle: 'Choose a hours and minutes',
  +    subtitle: 'Hour and minute selection widget',
       routeName: TimePickerDemo.routeName,
       buildRoute: (BuildContext context) => new TimePickerDemo()
     ),
     new GalleryItem(
       title: 'Tooltips',
  -    subtitle: 'Display a short message on long-press',
  +    subtitle: 'Short message displayed after a long-press',
       routeName: TooltipDemo.routeName,
       buildRoute: (BuildContext context) => new TooltipDemo()
     ),
  
positive.code:   ),
    new GalleryItem(
      title: 'Sliders',
      subtitle: 'Select a value by dragging the slider thumb',
      routeName: SliderDemo.routeName,
      buildRoute: (BuildContext context) => new SliderDemo()
    ),
  
negative.code:   ),
    new GalleryItem(
      title: 'Leave-behind list items',
      subtitle: 'List items with hidden actions',
      routeName: LeaveBehindDemo.routeName,
      buildRoute: (BuildContext context) => new LeaveBehindDemo()
    ),
    new GalleryItem(
      title: 'List',
      subtitle: 'Layout variations for scrollable lists',
      routeName: ListDemo.routeName,
      buildRoute: (BuildContext context) => new ListDemo()
    ),
  