Background colour within Vim in iTerm 2 not consistent with screenshots or other editors. about onehalf HOT 5 CLOSED

This happens when using the default vim in macOS.
Install vim using homebrew brew install vim, this should solve your problem.

from onehalf.

@ergusto did you close this because you figured it out or because you gave up on it? I am having the same issue. 256 color is enabled. Other color schemes render fine.

I'm using iTerm2 3.3.0, Tmux 2.9a, neovim 0.3.7. (Also tested with vim 8.0 and not using Tmux, but that still gives the same result.)

from onehalf.

@bunnyfly Because I gave up, unfortunately. I tried messing around with it a bit more but couldn't get it looking right, and the sort of off-black background just really ruined the aesthetic for me. I moved onto https://github.com/sainnhe/vim-color-atlantis which I've been using for a while now and I am very happy with it.

from onehalf.

from onehalf.

Ya the screenshot looks like its background color is the default 256 color fallback.

In https://github.com/sonph/onehalf/blob/master/vim/colors/onehalfdark.vim I set

let s:black       = { "gui": "#282c34", "cterm": "236" }

And cterm=236 corresponds to 303030 which is a gray color, instead of the blue-ish gui color: https://upload.wikimedia.org/wikipedia/commons/1/15/Xterm_256color_chart.svg

I'm not sure what's the current support for true colors in vim, but you should be able to check with

:echo has("termguicolors")

returning 1.

There are plenty of guides on the Internet about true colors in vim. Hope anyone encountering this problem will be able to get your setup working. I have some basic instructions in https://github.com/sonph/onehalf/blob/master/vim/README.md

from onehalf.