void initialize() {
      skin.getFont("default").getData().markupEnabled = true;

      for (int i = 0; i < 6; i++) trackButtons.add(new TextButton(i + "", skin, "toggle"));

      animationList.getSelection().setRequired(false);

      premultipliedCheckbox.setChecked(true);

      loopCheckbox.setChecked(true);

      scaleSlider.setValue(1);
      scaleSlider.setSnapToValues(new float[] {1, 1.5f, 2, 2.5f, 3, 3.5f}, 0.01f);

      mixSlider.setValue(0.3f);
      mixSlider.setSnapToValues(new float[] {1, 1.5f, 2, 2.5f, 3, 3.5f}, 0.1f);

      speedSlider.setValue(1);
      speedSlider.setSnapToValues(new float[] {0.5f, 0.75f, 1, 1.25f, 1.5f, 2, 2.5f}, 0.1f);

      alphaSlider.setValue(1);
      alphaSlider.setDisabled(true);

      window.setMovable(false);
      window.setResizable(false);
      window.setKeepWithinStage(false);
      window.setX(-3);
      window.setY(-2);

      window.getTitleLabel().setColor(new Color(0.76f, 1, 1, 1));
      window.getTitleTable().add(openButton).space(3);
      window.getTitleTable().add(minimizeButton).width(20);

      skinScroll.setFadeScrollBars(false);

      animationScroll.setFadeScrollBars(false);
    }