How to change the login picture in suse 15

hello everyone

I have a problem when changing the login image in suse 15, since I change from kde to gdm, some of you could already do it, can you help me please

This may be of interest…
https://wiki.archlinux.org/index.php/GDM#Log-in_screen_background_image

BTW, if it’s the login user image(s) that you want to change…

Settings > Details > Users > click on the image and select a new image/photo the from the pertinent file location…

https://help.gnome.org/users/gnome-help/stable/user-changepicture.html.en