A nice and dark colour scheme for Vim
Just copy the colors/penultimate.vim to .vim/colors and add this to your .vimrc:
colors penultimate
Best if used with some additions to Vim's C++ syntax highlighting that can be found here https://github.com/ivan-cukic/vim-syntax-files
If you are using a plugin manager like Vundle, you can also install it by adding the following line to your .vimrc:
Plugin 'ivan-cukic/vim-colors-penultimate'