+       //Captcha background
+       protected string $captchaBackground;
+
+       //Captcha fill
+       protected string $captchaFill;
+
+       //Captcha font size
+       protected int $captchaFontSize;
+
+       //Captcha stroke
+       protected string $captchaStroke;
+
+       //Captcha stroke width
+       protected int $captchaStrokeWidth;
+