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Original source (github.com)
Tags: vim color-schemes github.com
Clipped on: 2016-08-30

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Adaptation of one-light and one-dark colorschemes for Vim
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Light and dark vim colorscheme, shamelessly stolen from atom (another excellent text editor). One supports true colors and falls back gracefully and automatically if your environment does not support this feature.

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Vim Airline theme

Add the following line to your  ~/.vimrc  or  ~/.config/nvim/init.vim 

let g:airline_theme='one'

As for the colorscheme, this theme comes with light and dark flavors.

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List of enhanced language support

Pull requests are more than welcome here. I have created few issues to provide a bare bone roadmap for this color scheme.


  • Asciidoc
  • Cucumber features
  • CSS and Sass
  • Elixir
  • HTML
  • JavaScript, JSON
  • Markdown
  • Ruby
  • Vim
  • XML
  • Go

In progress

  • Jade


You can use your preferred Vim Package Manager to install One.


One comes in two flavors: light and dark, make sure to properly set your  background  before setting the colorscheme.

set background=dark " for the dark version
" set background=light " for the light version
colorscheme one

Italic support

Some terminals do not support italic, cf. #3.

If your terminal does support italic, you can set the  g:one_allow_italics  variable to 1 in your  .vimrc  or  .config/nvim/init.vim :

set background=light        " for the light version
let g:one_allow_italics = 1 " I love italic for comments
colorscheme one

iTerm2 can support italic, follow the instructions given in this blog post by Alex Pearce. Make sure to read the update if you are using tmux version 2.1 or above.

True color support

To benefit from the true color support make sure to add the following lines in your  .vimrc  or  .config/nvim/init.vim 

"Use 24-bit (true-color) mode in Vim/Neovim when outside tmux.
"If you're using tmux version 2.2 or later, you can remove the outermost $TMUX check and use tmux's 24-bit color support
"(see < http://sunaku.github.io/tmux-24bit-color.html#usage > for more information.)
if (empty($TMUX))
  if (has("nvim"))
  "For Neovim 0.1.3 and 0.1.4 < https://github.com/neovim/neovim/pull/2198 >
  "For Neovim > 0.1.5 and Vim > patch 7.4.1799 < https://github.com/vim/vim/commit/61be73bb0f965a895bfb064ea3e55476ac175162 >
  "Based on Vim patch 7.4.1770 (`guicolors` option) < https://github.com/vim/vim/commit/8a633e3427b47286869aa4b96f2bfc1fe65b25cd >
  " < https://github.com/neovim/neovim/wiki/Following-HEAD#20160511 >
  if (has("termguicolors"))
    set termguicolors

set background=dark " for the dark version
" set background=light " for the light version
colorscheme one

I've tested the following setup on a Mac:

  • iTerm2 nightly build
  • Neovim 0.1.4 and 0.1.5-dev
  • Vim 7.4.1952