@Override
  protected @NotNull JComponent createPopupComponent(JComponent content) {
    final var component = super.createPopupComponent(content);
    final var renderer = ((MyBasePopupState<?>)myStep).myGetRenderer.get();
    if (component instanceof JScrollPane scrollPane && isRendererWithInsets(renderer)) {
      scrollPane.getVerticalScrollBar().setBackground(UIManager.getColor("ComboBox.background"));
    }
    return component;
  }
@Override
  protected @NotNull JComponent createPopupComponent(JComponent content)