svoid dm_addTrayIcon_left(final JComponent icon) {
  final DynModule m = dm_current_mandatory();
  swing {
    L<JComponent> l = dm_getOSOpt('trayAreaComponents);
    if (l == null) ret;
    if (l.contains(icon)) ret;
    l.add(0, icon);
    dm_updateTrayIcons();
    temp dm_enter(m);
    dm_ownResource(autoCloseable { dm_removeTrayIcon(icon); });
  }
}