// runnable = Runnable or voidfunc(MouseEvent)
static void onTitleRightClick(final JFrame frame, final O runnable) {
  awt {
    if (!isSubstanceLAF())
      print("Can't add title right click!");
    else {
      JComponent titleBar = getTitlePaneComponent(frame);
      //print("titleBar: " + titleBar);
      titleBar.addMouseListener(new MouseAdapter {
        public void mousePressed(MouseEvent e) {
          //print("titleBar mousePressed " + e.getButton());
          if (isNotLeftMouseButton(e)) {
            //print("Calling " + runnable);
            callF(runnable, e);
          }
        }
      });
    }
  }
}

Began life as a copy of #1003463