docs: @RenderMapping
      public String showConfigPage(
              RenderRequest request, PortletPreferences preferences, Model model) {
          // Add skin names
          SortedSet<String> skins = skinService.getSkinNames(request);
          model.addAttribute("skinNames", skins);
  
          // Get the list of preferences and add them to the model
          Enumeration<String> preferenceNames = preferences.getNames();
          while (preferenceNames.hasMoreElements()) {
              String name = preferenceNames.nextElement();
              if (name.startsWith(DynamicRespondrSkinConstants.CONFIGURABLE_PREFIX)) {
                  model.addAttribute(name, preferences.getValue(name, ""));
              }
          }
  
          return "jsp/DynamicRespondrSkin/skinConfig";
      }