private void notifyAtSchemePanel(@NotNull @NlsContexts.PopupContent String message) {
    final JBPopupFactory popupFactory = JBPopupFactory.getInstance();
    Balloon balloon = popupFactory
      .createHtmlTextBalloonBuilder(message, MessageType.INFO, null)
      .setHideOnClickOutside(true)
      .setHideOnKeyOutside(true)
      .createBalloon();
    Disposer.register(ApplicationManager.getApplication(), balloon);
    balloon.show(new RelativePoint(
      mySchemesPanel,
      new Point(mySchemesPanel.getWidth() / 10, mySchemesPanel.getHeight())), Balloon.Position.below);
  }
private void notifyAtSchemePanel(@NotNull @NlsContexts.PopupContent String message)