Adding backgroundColor option (fixes #55)

DependencyInjection/Configuration.php

@@ -39,6 +39,7 @@ class Configuration implements ConfigurationInterface
                 ->scalarNode('whitelist_key')->defaultValue('captcha_whitelist_key')->end()
                 ->scalarNode('humanity')->defaultValue(0)->end()
                 ->scalarNode('distortion')->defaultValue(true)->end()
+                ->arrayNode('backgroundColor')->prototype('scalar')->end()
             ->end()
         ;
 

Generator/CaptchaGenerator.php

@@ -95,6 +95,15 @@ class CaptchaGenerator
     {
         $this->builder->setDistortion($options['distortion']);
 
+        if ($options['backgroundColor'] != array()) {
+            if (count($options['backgroundColor'])!=3) {
+                throw new \RuntimeException('backgroundColor should be an array of r, g and b');
+            }
+
+            $color = $options['backgroundColor'];
+            $this->builder->setBackgroundColor($color[0], $color[1], $color[2]);
+        }
+
         $fingerprint = isset($options['fingerprint']) ? $options['fingerprint'] : null;
 
         $content = $this->builder->build(

composer.json

@@ -18,7 +18,7 @@
     ],
     "require": {
         "php": ">=5.3.0",
-        "gregwar/captcha": "v1.0.1"
+        "gregwar/captcha": "v1.0.3"
     },
     "autoload": {
         "psr-0": {