The Gui for Preferences of Themes, Backgrounds, Fonts, Interface, is now all integrated in one : gnome-appearance-properties.
When I right-clicked an empty spot on my desktop and selected “Change Desktop Background” I saw This:
A new way of setting preferences in Gnome, and with the tabs I selected and checked the possibilities of this new “Preferences Suite”.
Here are some screenshots:
When you select the “Customize” button you can set up:
The other tabs of gnome-appearance-properties include:
Gutsy gibbon is still in development, I also saw this