How to remove the central solid circle on the login screen containing the first letter of the username?

Fedora Silverblue 39. I’d like to remove the solid circle in the middle of the login screen, leaving just the username and password entry field there. CLI would be ideal. I’d prefer to not need/use an extension, but dconf Editor would be okay, if appropriate. Any ideas, please? Many thanks in advance.

Considering you are on Silverblue, i’m not sure that is entirely possible. GDM is the Gnome Display manager and removing it could prove difficult on Silverblue because of how it’s tied to Silverblue,
( I believe it’s a protected package, and using other DM’s would mean layering the DM to Silverblue etc. . . ) and rpm-ostree.

Extensions like Caffeine and Simple Login exist, but again. . . Silverblue etc. . .

If I understand you correctly, you want to keep the standard login manager (gdm) but simplify its appearance. In that case you try setting /apps/gdm/simple-greeter/disable_user_list in the gconf for user gdm.
Or do you want to login at the tty and then follow up with XDG_SESSION_TYPE=wayland exec dbus-run-session gnome-session? In that case you would need to change your default target.

In both cases, there’s no need to remove/uninstall anything, it is just config (gconf/systemd).

It is a placeholder for your image or avatar. It is found in /var/lib/AccountsService/icons/ under your login id. You can replace it or remove it if you like.

Let the question now exactly be that: how to remove it? You give the appearance you know how to do it. Now share that to the OP.

How difficult is it to run ls /var/lib/AccountsService/icons/ and find the entry with the user id then either remove it or replace it with something else?

Seems to me that @vekruse already gave enough info since we cannot do that for the OP.

Thank you for all responses so far. Nearly there! Deleting /var/lib/AccountsService/icons/steve results in a default icon. Nullifying /var/lib/AccountsService/icons/steve results in an empty circle. I could make an icon to exactly match the background, to give the impression of no icon, but is there some way to truly not have it there whatsoever?

BTW & FWIW, Configuration was interesting but no help.

Yet, last answer of OP still seems to suggest the answer of @vekruse does not cut it, at least not for OP.

Are you saying that you believe @vekruse should have the 100% correct answer and full details 100% of the time?

I think that giving clues for the OP to investigate is more important that having all the answers and spending the time to provide full details. No one is smart enough to know every detail about the answers to every question and no one would learn if they were not required to actually put forth personal effort.

This forum is not designed to provide every detailed answer. It is a place for people to ask questions and receive guidance. Some of the answers may be simple and easy and others may only be pointers on what areas to invesitgate.

If you wish to provide the detailed answer then do so. If not then lets just help each other work through the problem instead of being critical of others answers.

I am not involved in gdm development, and I am not even using it on my normal system. I just occasionally run it in a virtual machine. The proper way for changing the icon/avatar is through config->users, but it doesn’t provide an option to disable it. Perhaps a 1x1 pixel image could do it.