Package for Appearance Preferences

[Sawrub]

I want to play around with configuration of "Appearance Preferences > 
Background". Can some one tell me, what package to play around with for 
it.Googling does not help much.Can something be done here using Gconf 
configuration editor.

-- 
Saurabh Sharma
Linux user number: 490644
http://sawrub-blog.blogspot.com/
Open your doors.......It's time to look beyond Windows