public static function stylesheets()
    {
        // params in config file
        $config = config('sir-trevor-js');

        /*
         * Files of Sir Trevor JS
         */
        $return = HTML::style($config['path'].'sir-trevor-icons.css')
            .HTML::style($config['path'].'sir-trevor.css');

        /*
         * Others files if you need it
         */
        if (isset($config['stylesheet']) && is_array($config['stylesheet'])) {
            foreach ($config['stylesheet'] as $arr) {
                if (file_exists(public_path($arr))) {
                    $return .= HTML::style($arr);
                }
            }
        }

        return $return;
    }