static TrayIcon installTrayIcon(S imageID, S tooltip) {

  ret installTrayIcon(imageID, tooltip, null);

}

// menuItems can also just be a PopupMenu

// also, first of menuItems can be a Runnable for left-click on icon

static TrayIcon installTrayIcon(S imageID, S tooltip, O... menuItems) ctex {

  // convenience parameter swap :-)

  if (!isSnippetID(imageID) && isSnippetID(tooltip)) {

    S s = tooltip;

    tooltip = imageID;

    imageID = s;

  }

  ret installTrayIcon(imageIcon(imageID).getImage(), tooltip, menuItems);

}

static TrayIcon installTrayIcon(final Image image, fS tooltip, fO... _menuItems) ctex {

  ret swing(func -> TrayIcon {

    Runnable leftClick = null;

    O[] menuItems = params_unpackList(_menuItems);

    if (l(menuItems) > 0 && menuItems[0] instanceof Runnable) {

      leftClick = (Runnable) menuItems[0];

      menuItems = dropFirst(menuItems);

    }

    PopupMenu menu = makePopupMenu(menuItems);

    TrayIcon trayIcon = new TrayIcon(image, tooltip, menu);

    trayIcon.setImageAutoSize(true);

    if (leftClick != null) {

      final Runnable _leftClick = leftClick;

      onLeftClick(trayIcon, _leftClick);

    }

    SystemTray.getSystemTray().add(trayIcon);

    ret trayIcon;

  });

}