where are all GDM themes

I can’t find any GDM theme of config tool… tried Yast and google: any hint please?
Many thanks

Are you looking to change the Grub menu background?

I created a script that does that,
Up to 13.1 I changed the background by necessity (When the grub menu entries were made visible, they infringed on the version number default graphic).
In 13.2, changing the background no longer is a necessity, so my script only modifies the text layout but the code and instructions to change the background is only commented out.

So, all the scripts support changing the text position, size and font in the display and in 13.2 can still change the background to an image of your choice. The menu items text content are not changed by the script, that is still done in grub.cfg

https://en.opensuse.org/User:Tsu2/12.3/Modified_GRUB_Menu

If you’re asking about a Graphical Display Manager tool, that will depend on your chosen Desktop (Different display managers are used for different Desktops). Themes are usually included and set by a tool provided by your Desktop.

HTH,
TSU

No, gdm is the gnome display manager.
I’m surprised there’s no theme in the repos, and no tool included in a default install for tuning it up or change theme (and none in the repos too -search string “gdm”-).
It must be because opensuse tends to prefer kde?
Thanks

You can install the gnome display manager if it’s missing on your system (my guess not likely)
http://software.opensuse.org/package/gdm

TSU