flazz/vim-colorschemes — pull request #15 by chrokh (2013-06-19 10:39:28+00:00)
Title: Adding Gary Bernhardts (destroyallsoftware.com) colorscheme grb256, based on ir_black

Snatched from
https://github.com/garybernhardt/destroy-all-software-extras/blob/master/das-0030-some-vim-tips/grb256.vim