Tk::Balloon(3pm) on Linux
The text 1e4a8e2a2d33, as Debian 10 (Buster) shipped it.
pop up help balloons.
Flags it lists
-
-balloonposition -
-cancelcommand -
-initwait -
-motioncommand -
-numscreens -
-postcommand -
-state -
-statusbar