Image2Css\Converter::setColorType PHP Метод

    public function setColorType($type)
    {
        if ($type !== \Image2Css\Converter::HEXA && $type !== \Image2Css\Converter::RGBA && $type !== \Image2Css\Converter::BEST) {
            throw new \InvalidArgumentException('Color type not allowed.');
        }
        $this->color_type = $type;
    }