protected function getDumper()
    {
        if (!$this->dumper) {
            $this->dumper = new DebugBarHtmlDumper();
            $dumperOptions = $this->getDumperOptions();
            if (isset($dumperOptions['styles'])) {
                $this->dumper->setStyles($dumperOptions['styles']);
            }
        }
        return $this->dumper;
    }