diff --git a/README.md b/README.md
index 7745c08..89a0c8c 100644
--- a/README.md
+++ b/README.md
@@ -79,9 +79,10 @@ All themes fall back to the default laravel folders if a resource is not found o
 The default theme can be configured in the `theme.php` configuration file. Working with themes is very straightforward. Use:
 
 ```php
-Theme::set('theme-name');    // switch to 'theme-name'
-Theme::get();                // retrieve current theme's name
-Theme::config('key');        // read current theme's configuration value for 'key'
+Theme::set('theme-name');        // switch to 'theme-name'
+Theme::get();                    // retrieve current theme's name
+Theme::config('key');            // read current theme's configuration value for 'key'
+Theme::configSet('key','value'); // assign a key-value pair to current theme's configuration
 ```
 
 For example this is a Service Provider that will select a different theme for the `/admin/xxx` urls:
diff --git a/src/Theme.php b/src/Theme.php
index dcf0acc..7c17db1 100644
--- a/src/Theme.php
+++ b/src/Theme.php
@@ -59,9 +59,10 @@ public function url($url){
      * are stored per theme in themes.php config file. 
      *
      * @param  string $key
+     * @param  mixed $defaultValue
      * @return mixed
      */
-    public function config($key){
+    public function config($key, $defaultValue){
         //root theme not have configs
         if(array_key_exists($this->name, $confs = \Config::get("themes.themes")))
         {
@@ -69,9 +70,24 @@ public function config($key){
                 return $conf[$key];
         }
         if ($this->getParent())
-            return $this->getParent()->config($key);
+            return $this->getParent()->config($key, $defaultValue);
 
-        return null;
+        return $defaultValue;
     }
 
+    /**
+     * Return the configuration value of $key for the current theme. Configuration values
+     * are stored per theme in themes.php config file. 
+     *
+     * @param  string $key
+     * @param  mixed $value
+     * @return mixed
+     */
+    public function configSet($key, $value){
+        $themeName = $this->name;
+        \Config::set("themes.themes.$themeName.$key",$value);
+        return $value;
+    }
+
+
 }
diff --git a/src/Themes.php b/src/Themes.php
index bae0294..e4a3e6e 100644
--- a/src/Themes.php
+++ b/src/Themes.php
@@ -105,15 +105,26 @@ public function get(){
 	}
 
     /**
-     * Return current theme's configuration option for $key
+     * Return current theme's configuration value for $key
      *
      * @param   string $key
      * @return  mixed
      */
-	public function config($key){
-		return $this->activeTheme->config($key);
+	public function config($key, $defaultValue = null){
+		return $this->activeTheme->config($key, $defaultValue);
 	}
 
+    /**
+     * Set current theme's configuration value for $key
+     *
+     * @param   string $key
+     * @return  mixed
+     */
+    public function configSet($key, $value){
+        return $this->activeTheme->configSet($key, $value);
+    }
+
+
     /**
      * Attach current theme's paths to a local Url. The Url must be a resource located on the asset path
      * of the current theme or it's parents.