A bunch of simple shaded wallpapers. (Years of research went into these.)

Site: Simania (http://www.simania.nl/sdls/co/sdls-co.htm)

Previous upload: 13-06-2005 (URL corrected, remade with IFFSnooper to look less 
banded at 16-bit colour).
Last uploaded: 20-11-2006 (sprites recoded by hand and Dutch translations added).

Instructions: put the .wll file in [The Sims]\GameData\Walls.

Disclaimer & conditions: This file can't possibly be violating any
copyrights, so I can skip that. It was made for fans to use in their own
installed Sims games. I don't mind people sharing this file, but it may
not be put up for download on someone else's page or included in 
commercial distributions.