color_at_position.dart

/// Get the color from a gradient at a specific position
/// Position should be between 0 and 1
extension ColorGetter on Gradient {
  Color? colorAtPosition({
    required double position,
  }) {

    List<double> _stops = stops ?? List.generate(colors.length, (index) => index * (1 / (colors.length-1)));

    for (var stop = 0; stop < _stops.length - 1; stop++) {
      final leftStop = _stops[stop],
          rightStop = _stops[stop + 1];
      final leftColor = colors[stop],
          rightColor = colors[stop + 1];
      if (position <= leftStop) {
        return leftColor;
      } else if (position < rightStop) {
        final sectionT = (position - leftStop) / (rightStop - leftStop);
        return Color.lerp(leftColor, rightColor, sectionT);
      }
    }
    return colors.last;
  }
}