React\Gifsocket\GifEncoder::__construct PHP Method

    public function __construct($loopCount = -1, $disposal = 2, $red = null, $green = null, $blue = null)
    {
        $this->loopCount = $loopCount;
        $this->disposal = $disposal;
        $this->transparentColor = is_int($red) && is_int($green) && is_int($blue) ? $red | $green << 8 | $blue << 16 : null;
    }