public function getThemes()
 {
     if (isset($_GET['repo'])) {
         try {
             $theme = $this->themes->pusherThemeFromRepository($_GET['repo']);
             return $this->render('themes/edit', compact('theme'));
         } catch (ThemeNotFound $e) {
             // Theme not found, show index instead
         }
     }
     $data['themes'] = $this->themes->allPusherThemes();
     return $this->render('themes/index', $data);
 }