This is not light-themes fault, I've seen this behavior since my first days with Ubuntu (9.04 then) so this is really an ancient bug since GTK+2. You can also see this behavior with other menus placed at bottom of screen, such as the theme selector combobox in Appearance panel of Control Center.
** Project changed: light-themes => gtk -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/965953 Title: indicator applet with scroll arrows To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/965953/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs