This totally looks like KDE2.
I think there is no such theme in KDE2. By the way, I already tried KDE2.
Although I dont know how to include KDE2 in gdm greater. I think KDE2 has no advantages over KDE3: one can configure KDE3 to look like KDE2 and it has greather functionality.
I just wrote “KDE2” because your desktop has some kind of vintage touch. Compared to the usual Compiz / KDE4 blingbling, transparency etc. it looks a little retro. I like it, though, very easy on the eyes and elegant.
Compared to the usual Compiz / KDE4 blingbling
You cannot know if compiz is on in this screenshot: it looks just the same as kwin and uses kwin window decorations.
If I would like to make it look like KDE2 I could do it easily: there is a ‘classic KDE’ KDE2-like style in KDE3.
IMHO “retro” covers it pretty good. Don’t defend yourself, like what you like and use it. A matter of taste.
Here is my desktop
Ansus, that looks very MS XPish. If I saw that out of context (and didn’t pay too much attention to the small details) I would assume I was looking at a XP desktop.
Well in fact some people already noticed that the icons are very similar to the icon theme from Windows Vista, don’t you think so?