XmToggleButtonGadget(3) on Linux
The text 6c1bbde48b44, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Motif-compatible toggle-button gadget
The text 6c1bbde48b44, as Debian 7 (Wheezy), Debian 6.0 (Squeeze) shipped it.
Motif-compatible toggle-button gadget