+       /**
+        * The captcha background
+        */
+       public string $captchaBackground;
+
+       /**
+        * The captcha fill
+        */
+       public string $captchaFill;
+
+       /**
+        * The captcha font size
+        */
+       public int $captchaFontSize;
+
+       /**
+        * The captcha stroke
+        */
+       public string $captchaStroke;
+
+       /**
+        * The captcha stroke width
+        */
+       public int $captchaStrokeWidth;
+