public void addIndicator(@NotNull InlineProgressIndicator indicator) {
    JComponent component = indicator.getComponent();
    if (myIndicatorPanel.getComponentCount() == 0) {
      hideSeparator(component);
    }
    if (ExperimentalUI.isNewUI()) {
      component.setOpaque(false);
    }
    myIndicatorPanel.add(component);
    revalidateAll();
  }
public void addIndicator(@NotNull InlineProgressIndicator indicator)