Theme for Gnome Xsplash based in image:
Not-So-Innocent White, http://www.flickr.com/photos/andy_morris/3556356518/sizes/o/
Author: Mozzer502 / Andy Morris, http://www.flickr.com/people/andy_morris/
1. gksudo nautilus
3. make a copy of original folder xsplash
4. make a new folder xsplash, and extract: ubuntu_auga.zip
5. to test type in terminal "sudo xsplash"