Here's a nice, simple, blue GDM Theme (with a splash of green) with the GNOME Logo prominently displayed.
BTW, if you'd like the SVG artwork for any of my GDM themes, just download the tar.gz file - it's in them. All of the artwork in this theme is svg, besides the small bluecurve pixmaps for each button on the toolbar at the bottom. For best results, please useinkscape! ( [link]
- Widescreen support - should be a simple fix - right now the background images stretches on widescreen monitors.
- Pam error message alignment - a little flaky, should be a simple fix - need to vertically box together the login box and error messages.