gpick(1) on Linux
The text cbaa8bed8599, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye), Debian 10 (Buster), Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
advanced color picker written in C++ using GTK+ toolkit
Flags it lists
-
--display -
--help -
--help-all -
--help-gtk -
--pick -
--version -
-h -
-p -
-v