About changing lightdm unity greeter background image, most answers are to change /usr/share/glib2.0/schemas/com.canonical.unity-greeter.gschema.xml. Is there any way to change the default wallpaper in lightdm unity greeter without changing the file? Like an override file.
I'm making a debian package that would apply our own artwork after installing. I can't changing the file content in my maintainer script, which would violate debian packaging policy. I can change the unity desktop background by adding a schema override file in the same folder, but I couldn't find a way to change the lightdm background with similar way.