field2.setStyleName("ticket4997-blue");
layout.addComponent(field2);
TextField field3 = new TextField("Red-Blue style");
field3.addStyleName("ticket4997-red");
field3.addStyleName("ticket4997-blue");
layout.addComponent(field3);
TextField field4 = new TextField("Disabled");
field4.setEnabled(false);
field4.addStyleName("foobar"); // no visible change, but points out