XmIconGadget(3) on Linux
The text 7bde27b6b779, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
The IconGadget widget class "XmIconGadget" "iconGadget" "IconGadget"