darken method

TinyColor darken([
  1. int amount = 10
])

Implementation

TinyColor darken([int amount = 10]) {
  final p = RangeError.checkValueInInterval(amount, 0, 100, 'amount') / 100;
  final hsl = toHSLColor();
  final lightness = clamp01(hsl.lightness - p);
  _color = hsl.withLightness(lightness).toColor();
  return this;
}