static JSlider looselyBindLiveValueToSliderWithFactor(double increment, IVarWithNotify<Double> lv, JSlider slider) {
  onChange(slider, -> lv.set(intFromSlider(slider)/increment));
  bindToComponent(slider, -> {
    Double value = lv!;
    if (value != null)
      setSliderValue(slider, iround(value*increment));
    else
      lv.set(intFromSlider(slider)/increment);
  });
  ret slider;
}