/usr/share/glib-2.0/schemas/arctica-greeter-theme-debian.gschema.override is in arctica-greeter-theme-debian 0.99.0.4-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 | [org.ArcticaProject.arctica-greeter]
background='/usr/share/images/desktop-base/desktop-background'
background-color='#274d63'
togglebox-button-bgcolor='#274d63'
logo='/usr/share/arctica-greeter/theme-debian-logo.png'
|