Fix get_skin_path() so it always returns main skin path not plugin's

program/include/rcmail_output_html.php

@@ -248,6 +248,14 @@ EOF;
         return $title;
     }
 
+    /**
+     * Getter for the current skin path property
+     */
+    public function get_skin_path()
+    {
+        return $this->skin_paths[0];
+    }
+
     /**
      * Set skin
      *