XmSeparatorGadget(3) on Linux
The text 54cb422e1fd0, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Motif-compatible visual separator gadget
The text 54cb422e1fd0, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Motif-compatible visual separator gadget