code: public static Map<String, ISettings> makeDefaultSettings()
    {
      Map<String, ISettings> settings = new TreeMap<>();
  
      AppearanceSettings appearanceSettings = new AppearanceSettings();
      appearanceSettings.resetToDefaultSettings( null );
      settings.put( appearanceSettings.getPath(), appearanceSettings );
  
      return settings;
    }
docs: Reset Gosu Lab application-level settings to defaults.