vim/ftplugin/css.vim

   1 " invert all hex colors
   2 " :%s/\v#(\x{6})/\=printf('#%06x', 0xffffff - eval('0x'.submatch(1)))
   3
   4 setlocal expandtab
   5 setlocal tabstop=2
   6 setlocal shiftwidth=2
   7 setlocal softtabstop=2