operator + method

Color operator +(
  1. dynamic v
)

Implementation

Color operator +(dynamic v) {
  if (v is double) {
    return Color(r: r + v, g: g + v, b: b + v);
  } else if (v is Color) {
    return Color(r: r + v.r, g: g + v.g, b: b + v.b);
  } else {
    throw 'Color only support addition by double or Color';
  }
}