wrong background when using neovim + termguicolors + tmux

[sdemura]

When using set tgc on Neovim so that I can take advantage of comment brightness, I get the wrong background color when using it inside tmux.

OS X High Sierra
iTerm2 3.1.5 (xterm-256color)
Tmux 2.6 (screen-256color)
neovim 0.2.1 (tgc set)

running in tmux:

no tmux:

[arcticicestudio]

This might be local configuration problem of tmux. Please try to fix it by following the instructions in nordtheme/tmux#15 (comment).

It works on my system when using the correct tmux configurations and I was able to reproduce the exact problem when removing the options described in the linked instructions.

[sdemura]

@arcticicestudio,
adding +set-option -ga terminal-overrides ",xterm-256color:Tc" to my tmux.conf did the trick.

Thanks!!!!

[arcticicestudio]

Glad to hear it worked 😄

I'll add a chapter about the usage with tmux to the documentation.

[i3d]

the original wasn't working for me
"+set-option -ga terminal-overrides ",xterm-256color:Tc"

But this did
"set -ga terminal-overrides ",xterm-256color:Tc"

1. paste the set command within the quote verbatimly into your .tmux.conf. (append to the end, so that it is the last set option to execute, override any other ones possible)
2. tmux source ~/.tmux.conf
3. try again, it should work.