anchor.diff:            child: new Container(
               margin: const EdgeInsets.only(left: 24.0),
               child: _crossFade(
  -              new Text(value, style: text54),
  -              new Text(hint, style: text54),
  +              new Text(value, style: textTheme.caption.copyWith(fontSize: 15.0)),
  +              new Text(hint, style: textTheme.caption.copyWith(fontSize: 15.0)),
                 showHint
               )
             )
  
positive.code:           ) - margin,
            child: new Center(
              child: new DefaultTextStyle(
                style: text54,
                child: child
              )
            )
  
negative.code:   Bahamas,
    Bermuda
  }
  
  typedef Widget DemoItemBodyBuilder(DemoItem<dynamic> item);
  typedef String ValueToString<T>(T value);
  