public function loadStyle($file = null)
    {
        // init required vars
        $content = '';

        // Get style file or get default
        if (is_null($file)) {
            $file = __DIR__.'/../public/github.css';
        }

        // check if style file exists
        if ($this->filesystem->exists($file)) {
            $content = $this->filesystem->get($file);
        }

        // Finally return style
        return "<style>{$content}</style>";
    }