backgroundZoom.setText("Zoom anywhere on the background!");
backgroundZoom.setPickable(false);
this.getCanvas().addChild(backgroundZoom);
backgroundZoom.setPositionGlobal(new Vector3D(app.width/2f, app.height/2f,0));
getCanvas().registerInputProcessor(new ZoomProcessor(app));
getCanvas().addGestureListener(ZoomProcessor.class, new DefaultZoomAction());
//2 finger pan gesture
MTTextArea backgroundPan = new MTTextArea(mtApplication, font);
backgroundPan.setFillColor(new MTColor(150,150,150));
backgroundPan.setNoFill(true);