MWClash/lib/common/color.dart

import 'package:flutter/material.dart';

extension ColorExtension on Color {

  Color get toLight {
    return withOpacity(0.8);
  }

  Color get toLighter {
    return withOpacity(0.6);
  }

  Color get toSoft {
    return withOpacity(0.15);
  }

  Color get toLittle {
    return withOpacity(0.03);
  }

  Color darken([double amount = .1]) {
    assert(amount >= 0 && amount <= 1);
    final hsl = HSLColor.fromColor(this);
    final hslDark = hsl.withLightness((hsl.lightness - amount).clamp(0.0, 1.0));
    return hslDark.toColor();
  }

  Color blendDarken(
    BuildContext context, {
    double factor = 0.1,
  }) {
    final brightness = Theme.of(context).brightness;
    return Color.lerp(
      this,
      brightness == Brightness.dark ? Colors.white : Colors.black,
      factor,
    )!;
  }

  Color blendLighten(
    BuildContext context, {
    double factor = 0.1,
  }) {
    final brightness = Theme.of(context).brightness;
    return Color.lerp(
      this,
      brightness == Brightness.dark ? Colors.black : Colors.white,
      factor,
    )!;
  }
}

extension ColorSchemeExtension on ColorScheme {
  ColorScheme toPrueBlack(bool isPrueBlack) => isPrueBlack
      ? copyWith(
          surface: Colors.black,
          surfaceContainer: surfaceContainer.darken(
            0.05,
          ),
        )
      : this;
}