A Colorful list widget for debugging

colorful_list.dart

class YYY extends StatelessWidget {
  YYY({bloc, @required this.iconData});

  final IconData iconData;

  static final r = Random();
  final colors = [
    for (final _ in range(100))
      Color.fromARGB(
          r.nextInt(256), r.nextInt(256), r.nextInt(256), r.nextInt(256)),
  ];
  
  @override
  Widget build(BuildContext context) => ListView.builder(
        itemCount: colors.length,
        itemBuilder: (_, i) {
          return Container(
            color: colors[i],
            child: ListTile(
              leading: Icon(iconData),
              title: Text('$i'),
            ),
          );
        },
      );
}