creating wallpaper slideshows in gnome

In my Gnome 2.32.1 running in opensuse 11.4, when I go to select wallpaper for my desktop, one of the options is a space-based slideshow. The files reside in /usr/share/backgrounds/cosmos. When I go there, there are the jpegs with an xml file that seems to controle the slideshow. Is there some kind of utility for creating this xml file? To create one manually, especially with a lot of pics, seems kinda cumbersome.

Nevermind, found it myself.

Wallpaper Slideshow

The only thing is that is stores the xml and config files as hidden files in your personal home directory so I manually copy them to the same folder that holds the jpg’s just to be more organized.