anchor.diff:        child: new Container(
           height: kCardHeight,
           child: new Card(
  -          child: new Flex([
  -            new Flexible(
  -              child: new Stack([
  -                new Container(
  -                  decoration: demo.decoration,
  -                  child: new Container()
  -                ),
  -                new Container(
  -                  margin: const EdgeDims.all(24.0),
  -                  child: new Flex([
  -                      new Text(demo.name, style: demo.textTheme.title),
  -                      new Flexible(
  -                        child: new Text(demo.description, style: demo.textTheme.subhead)
  -                      )
  -                    ],
  -                    direction: FlexDirection.vertical,
  -                    alignItems: FlexAlignItems.start)
  -                )
  -              ])
  -            ),
  -          ], direction: FlexDirection.vertical)
  +          child: buildCardContents(demo)
           )
         )
       );
  
positive.code: import 'package:sky/widgets/theme.dart';
  import 'package:sky/widgets/tool_bar.dart';
  import 'package:sky/widgets/scrollable_list.dart';
  
  AssetBundle _initBundle() {
    if (rootBundle != null)
  
negative.code:     )
    ),
    // new SkyDemo(
  
    //   'Touch Demo', '../../rendering/touch_demo.dart', 'Simple example showing handling of touch events at a low level'),
    new SkyDemo(
      name: 'Minedigger Game',
  