Sample Use of Gradient Icon

sample_gradient_icon.dart

class IconSample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return GradientIcon(
      Icons.add_alert,
      50.0,
      LinearGradient(
        colors: <Color>[
          Colors.red,
          Colors.yellow,
          Colors.blue,
        ],
        begin: Alignment.topLeft,
        end: Alignment.bottomRight,
      ),
    );
  }
}