protected static @NotNull JComponent createButtonsSeparator() {
    SeparatorComponent separator = new SeparatorComponent(JBUI.CurrentTheme.List.buttonSeparatorColor(), SeparatorOrientation.VERTICAL);
    separator.setHGap(1);
    separator.setVGap(JBUI.CurrentTheme.List.buttonSeparatorInset());
    return separator;
  }
protected static @NotNull JComponent createButtonsSeparator()