getColor = (color, override) => {
		const t = isTransparent(color) && transparentColor; // Color is transparent, and transparentColor override is defined
		const c = t ? transparentColor : color;
		return override && !t ? override : c; // Priority: transparentColor -> override -> supplied color
	}
Color override logic
@param  {Object} color    Color object
@param  {String} override Override color (fillColor/strokeColor)
@return {String}          CSS formatted color (rgba,..)