class InputDecorationThemeAttribute extends InputDecorationTheme
    implements InheritedAttribute<InputDecorationThemeAttribute> {
  const InputDecorationThemeAttribute({
    Color? iconColor,
    Color? fillColor,
    InputBorder? border,
  }) : super(
          iconColor: iconColor,
          fillColor: fillColor,
          border: border,
        );

  @override
  InputDecorationThemeAttribute merge(InputDecorationThemeAttribute other) {
    return InputDecorationThemeAttribute(
      iconColor: other.iconColor ?? iconColor,
      fillColor: other.fillColor ?? fillColor,
      border: other.border ?? border,
    );
  }

  static InputDecorationThemeAttribute inputDecoration(
      {Color? iconColor,
      Color? fillColor,
      InputBorder? border,
      Color? hoverColor,
      InputBorder? enabledBorder}) {
    return InputDecorationThemeAttribute(
      iconColor: iconColor ?? iconColor,
      fillColor: fillColor ?? fillColor,
      border: border ?? border,
    );
  }

  @override
  Object get type => InputDecorationThemeAttribute;
}

const inputDecoration = InputDecorationThemeAttribute.inputDecoration;

final inputDecorationMix = Mix(
        inputDecoration(
          border: const UnderlineInputBorder(
            borderSide: BorderSide(color: Colors.grey),
          ),
        ),
        myVariant(
          inputDecoration(
            enabledBorder: const UnderlineInputBorder(
              borderSide: BorderSide(color: Colors.yellow),
            ),
          ),
        ),
      )

   ...

 @override
  Widget build(BuildContext context) {
    return MixContextBuilder(
      mix: inputDecorationMix,
      builder: (context, mixContext) {
        final inputDecorationTheme =
            mixContext.fromType<InputDecorationThemeAttribute>();

        return TextFormField(
          decoration: const InputDecoration(
            filled: true,
            labelText: 'Label Text',
            suffixIcon: Icon(
              Icons.check_circle,
            ),
          ).applyDefaults(inputDecorationTheme),
        );
      },
    );
  }