anchor.diff:                  ),
                   _TransitionListTile(
                     title: 'Fade',
  -                  subtitle: 'The fade pattern is used for UI elements that '
  -                      'enter or exit within the screen bounds. Elements '
  -                      'that enter use a quick fade in and they scale.',
  +                  subtitle: 'FadeScaleTransition',
                     onTap: () {
                       Navigator.of(context).push(
                         MaterialPageRoute<void>(
  
positive.code:               children: <Widget>[
                  _TransitionListTile(
                    title: 'Shared Axis',
                    subtitle: 'Page transition where outgoing and incoming '
                        'elements share a fade transition',
                    onTap: () {
                      Navigator.of(context).push(
                        MaterialPageRoute<void>(
  
negative.code:   Widget build(BuildContext context) {
      return ListTile(
        contentPadding: const EdgeInsets.symmetric(
          horizontal: 15.0,
        ),
        leading: Container(
  