Red, green, blue and alpha values, all in range [0, 1] or all in range [0, 255] if any value is > 1. All values here are optional. Color channels default to 0, the alpha channel defaults to 1.
Similar to MapPosition, Color allows the short-hand notation of passing an array of exactly 3 or 4 numbers. The game usually expects colors to be in pre-multiplied form (color channels are pre-multiplied by alpha).
{ a?: float, b?: float, g?: float, r?: float } | Tuple<float, float, float, float>