public function __construct(?string $paymentSlipPath = null, ?string $fontFilePath = null) 	{ 		$this->image = imagecreatefromjpeg($paymentSlipPath ?? config('custom.payment_slip_path')); 		$this->fontFile = $fontFilePath ?? config('custom.payment_slip_font_path'); 		$this->fontColor = imagecolorallocate($this->image, 0, 0, 0); 	}