Backdrops/Wallpapers look wrong in OS 3.1

[Oldsmobile_Mike]

That's normal.  Workbench is adapting the colors to match your available palette.  Try locking the palette using a program like FullPalette or similar.

Read this guide:  http://www.mfilos.com/2012/01/guide-making-workbench-prettier-using.html

And download this program:  http://aminet.net/package/util/wb/FullPalette22

While you're at it, you probably want this, too:  http://aminet.net/package/util/libs/IconLib_46.4

[Oldsmobile_Mike]

Thanks. I tried using Fullpalette before but I wasn't able to get the color I wanted. But now I tried again, and after upping to 64 colors (giving me the right palette), locking the colors and then reducing to 32 colors again it worked! Thanks

Excellent!