static JPanel vscrollingCenteredLine_noGaps(Component... components) {
  //ret new CenteredLine(components);
  ret jpanel(new VScrollingWrapLayout, components);
}

static JPanel vscrollingCenteredLine_noGaps(L<? extends Component> components) {
  ret vscrollingCenteredLine_noGaps(asArray(Component.class, components));
}