overwriteDefaultIcons function

Future<void> overwriteDefaultIcons(
  1. IosIconTemplate template,
  2. Image image, [
  3. String iconNameSuffix = ''
])

Note: Do not change interpolation unless you end up with better results (see issue for result when using cubic interpolation) https://github.com/fluttercommunity/flutter_launcher_icons/issues/101#issuecomment-495528733

Implementation

Future<void> overwriteDefaultIcons(
  IosIconTemplate template,
  Image image, [
  String iconNameSuffix = '',
]) async {
  final Image newImage = createResizedImage(template, image);
  await File(
    iosDefaultIconFolder +
        iosDefaultIconName +
        iconNameSuffix +
        template.name +
        '.png',
  ).writeAsBytes(encodePng(newImage));
}