def getDownFace(self):
        if self.down is None:
            self.setDownFace(self.createFace(self.getUpFace(),
                             "down", self.DOWN))
        return self.down
Gets the down face of the button.
dataset/ETHPy150Open anandology/pyjamas/library/pyjamas/ui/CustomButton.py/CustomButton.getDownFace