// menuMaker = voidfunc(JPopupMenu)
static void titlePopupMenu(final Component c, fO menuMaker) {
  awtIfNecessary {
    if (!isSubstanceLAF())
      print("Can't add title right click!");
    else {
      JComponent titleBar = getTitlePaneComponent(getPossiblyInternalFrame(c));
      componentPopupMenu(titleBar, menuMaker);
    }
  }
}