@Override
      public @NotNull Style produce() {
        ID style = invoke(getObjcClass("NSScroller"), "preferredScrollerStyle");
        Style value = 1 == style.intValue() ? Overlay : Legacy;
        Logger.getInstance(MacScrollBarUI.class).debug("scroll bar style ", value, " from ", style);
        return value;
      }
@Override
      public @NotNull Style produce()