qooxdoo : Image Button remove padding border?

Question

I have an image button which looks like :

Here is my code for the image button :

var button = new qx.ui.form.Button(null, "myapp/test.png");
container.add(button, { left: 10, top: 10 });

How to remove the button border & the padding ? I want to display the image only.

note: container is a qx.ui.layout.Canvas.

Answer 1

The border and padding are defined by the button's decorator, which is nullable:

button.setDecorator(null);