Make the background of login screen (gdm greeter) configurable
I have submitted a request ( #680 (closed) ) before the login and unlock redesign in GNOME Shell 3.36. Now the lock screen is pretty fancy with a blurred effect and smooth transition between the clock and auth prompt.
But the login screen is still a grey background and not configurable, I added a blurred background for _lockDialogGroup
just like in ( #680 (closed) ), it's only a tentative solution, please see the attached screenshot.
I know this kind of UI request is better initiated by the design team. Their design is unified and maturer. Please let me know if this is an acceptable request and what I can do to improve the solution.