JSpinnerのTextFieldやArrowButtonを半透明にする

UIDefaults d = new UIDefaults();
Painter<JComponent> painter1 = (g, c, w, h) -> {
  g.setColor(new Color(100, 100, 100, 100));
  g.fillRect(0, 0, w, h);
};
Painter<JComponent> painter2 = (g, c, w, h) -> {
  g.setColor(new Color(100, 200, 200, 100));
  g.fillRect(0, 0, w, h);
};
d.put("Spinner:Panel:\"Spinner.formattedTextField\"[Enabled].backgroundPainter",
    painter1);
d.put("Spinner:Panel:\"Spinner.formattedTextField\"[Focused].backgroundPainter",
    painter2);
d.put("Spinner:Panel:\"Spinner.formattedTextField\"[Selected].backgroundPainter",
    painter2);

Painter<JComponent> painter3 = (g, c, w, h) -> {
  g.setColor(new Color(100, 100, 200, 100));
  g.fillRect(0, 0, w, h);
};
Painter<JComponent> painter4 = (g, c, w, h) -> {
  g.setColor(new Color(120, 120, 120, 100));
  g.fillRect(0, 0, w, h);
};
d.put("Spinner:\"Spinner.previousButton\"[Enabled].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.previousButton\"[Focused+MouseOver].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.previousButton\"[Focused+Pressed].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.previousButton\"[Focused].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.previousButton\"[MouseOver].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.previousButton\"[Pressed].backgroundPainter",
    painter4);

d.put("Spinner:\"Spinner.nextButton\"[Enabled].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.nextButton\"[Focused+MouseOver].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.nextButton\"[Focused+Pressed].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.nextButton\"[Focused].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.nextButton\"[MouseOver].backgroundPainter",
    painter3);
d.put("Spinner:\"Spinner.nextButton\"[Pressed].backgroundPainter",
    painter4);

SpinnerModel model = new SpinnerNumberModel(0, 0, 100, 5);
JSpinner spinner1 = new JSpinner(model);
// NG: spinner1.putClientProperty("Nimbus.Overrides", d);
((JSpinner.DefaultEditor) spinner1.getEditor())
    .getTextField().putClientProperty("Nimbus.Overrides", d);
configureSpinnerButtons(spinner1, d);