tktray(3tk) on Linux
The text edb7e909ae85, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie), Debian 7 (Wheezy) shipped it. The page shows this text now.
System Tray Icon Support for Tk on X11
Flags it lists
-
-class -
-docked -
-image -
-shape -
-visible