@Override public void handle(final InputEvent EVENT) {
                final EventType TYPE = EVENT.getEventType();
                final Object    SRC  = EVENT.getSource();
                if (MouseEvent.MOUSE_PRESSED == TYPE) {
                    if (SRC.equals(on)) {
                        getSkinnable().setSelected(false);
                    } else if (SRC.equals(off)) {
                        getSkinnable().setSelected(true);
                    }
                    EVENT.consume();
                }
            }