anchor.diff:    Widget build(BuildContext context) {
       return ListTile(
         contentPadding: const EdgeInsets.symmetric(
  -        vertical: 10.0,
           horizontal: 15.0,
         ),
         leading: Container(
  
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:                 ),
                  _TransitionListTile(
                    title: 'Fade',
                    subtitle: 'FadeScaleTransition',
                    onTap: () {
                      Navigator.of(context).push(
                        MaterialPageRoute<void>(
  