bling/vim-airline — pull request #112 by mattn (2013-08-03 05:55:26+00:00)
Title: Set t_Co=256 forcely

I guess, most of users don't use 256 color environment, and vim-airline use background color with the numeric value that higher than 16. For example, my ubuntu box set t_Co to 8 in default. How about set t_Co=256 forcely?