Merge pull request #317 from neccohuang/fix-lineWidth-lineColor

fix: lineWidth & lineColor

src/Captcha.php

@@ -117,6 +117,16 @@ class Captcha
      */
     protected $lines = 3;
 
+    /**
+     * @var int
+     */
+    protected $lineWidth = 2;
+
+    /**
+     * @var string
+     */
+    protected $lineColor = 'ff00ff';
+
     /**
      * @var string
      */
@@ -456,8 +466,8 @@ protected function lines()
             $this->image->drawLine(function (LineFactory $line) use ($i) {
                 $line->from(rand(0, $this->image->width()) + $i * rand(0, $this->image->height()) , rand(0, $this->image->height()));
                 $line->to( rand(0, $this->image->width()), rand(0, $this->image->height()));
-                $line->color('ff00ff'); // color of line
-                $line->width(5); // line width in pixels
+                $line->color($this->lineColor); // color of line
+                $line->width($this->lineWidth); // line width in pixels
             });
         }