anchor.diff:  ///
   ///   void rotateColor() {
   ///     setState(() {
  -///       color = color.withHue((color.hue + 6) % 360.0);
  +///       color = color.withHue((color.hue + 3) % 360.0);
   ///     });
   ///   }
   ///
  
positive.code: ///     Key? key,
  ///     required this.initialColor,
  ///     required this.useResolver,
  ///     required this.child,
  ///   }) : super(key: key);
  ///
  ///   final HSVColor initialColor;
  ///   final bool useResolver;
  ///   final Widget child;
  ///
  ///   @override
  ///   _ColorChangerState createState() => _ColorChangerState();
  
negative.code: ///             child: ColorChanger(
  ///               initialColor: const HSVColor.fromAHSV(1, 60.0, 1, 1),
  ///               useResolver: useResolver,
  ///             ),
  ///           ),
  ///         ),
  