vim syntax highlight under mac

$> vi ~/.vimrc
set nocompatible
syntax on

$> mkdir -p ~/.vim/colors
$> vi ~/.vim/colors/test.vim
" customize color scheme in test.vim
" colorscheme test

In mac leopard, there are many colorscheme included, these are in “/usr/share/vim/vim70/colors/”

reference: http://www.cs.cmu.edu/~maverick/VimColorSchemeTest/index.html