On themes.freshmeat.net there are a few Debian themes, some nice backgrounds etc. For example this one could go for a futuristic aqua-like look (GnuBubbles for GTK2 for example?) http://themes.freshmeat.net/screenshots/28071/
And sunshineinabag.co.uk already has a Debian GDM2 login screen http://sunshineinabag.co.uk/ which (when one replace the ridiculous apples ;) could be a nice default for gdm2 (when it gets packaged, i can't await it ;) The "Debian color" should be used for HighLight only, that is for the active window bar, marked text and hover effects maybe. IMHO. Greetings, Erich
