256 colors, CLI and GUI.
The original GUI conversations was made by Sam Lidder. I'm trying to maintain them, but I do not use gVim myself and I can't test it. Please send me a pull request if you notice something awkward there. :-)
Git Repository (fresh)
Vim Scripts directory (outdated)
Copy the colorscheme(s) to your $VIMRUNTIME/colors directory (most often $HOME/.vim/colors/) or use pathogen.
Copyright (C) 2010, 2011 Magnus Woldrich
Do whatever you want with this; If you fork it, please share your improvements.