xfce4-appearance-settings(1) on Linux
The text b59eaa2383a2, as Debian 10 (Buster), Debian 9 (Stretch) shipped it.
Appearance settings for Xfce
Flags it lists
-
--class -
--display -
--g-fatal-warnings -
--gtk-module -
--help -
--help-all -
--help-gtk -
--name -
--screen -
--sync -
--version -
-h -
-v