public void simpleInitApp() {
    NiftyJmeDisplay niftyDisplay =
        new NiftyJmeDisplay(assetManager, inputManager, audioRenderer, guiViewPort);
    nifty = niftyDisplay.getNifty();
    nifty.loadStyleFile("nifty-default-styles.xml");
    nifty.loadControlFile("nifty-default-controls.xml");
    // create nifty
    nifty.registerEffect("customHint", "rpgTest.ui.test.CustomHint");

    nifty.addScreen("start", makeScreen1(nifty));
    nifty.gotoScreen("start");

    // attach the nifty display to the gui view port as a processor
    guiViewPort.addProcessor(niftyDisplay);

    // disable the fly cam
    flyCam.setEnabled(false);
  }