docs: private static Map<String, String> getTypeItems() {
  
          Map<String, String> types = new LinkedHashMap<String, String>();
          types.put("roadmap", Messages.get().key(Messages.GUI_LOCATION_ROADMAP_0));
          types.put("hybrid", Messages.get().key(Messages.GUI_LOCATION_HYBRID_0));
          types.put("satellite", Messages.get().key(Messages.GUI_LOCATION_SATELLITE_0));
          types.put("terrain", Messages.get().key(Messages.GUI_LOCATION_TERRAIN_0));
          return types;
      }