code: public function showAction(Request $request, Application $app)
      {
          $options = array(
              "request" => $request,
              "configuration_handler" => $app["red_kite_cms.configuration_handler"],
              "page_collection_manager" => $app["red_kite_cms.page_collection_manager"],
              'form_factory' => $app["form.factory"],
              "pages_collection_parser" => $app["red_kite_cms.pages_collection_parser"],
              "username" => $this->fetchUsername($app["security"], $app["red_kite_cms.configuration_handler"]),
              'theme' => $app["red_kite_cms.theme"],
              'template_assets' => $app["red_kite_cms.template_assets"],
              'twig' => $app["twig"],
          );
  
          return parent::show($options);
      }
docs: Show page collection dashboard interface action
  
  @param \Symfony\Component\HttpFoundation\Request $request
  @param \Silex\Application                        $app
  @return \Symfony\Component\HttpFoundation\Response