Why don't most vim color schemes look as nice as the screenshot when I use them? [closed]

Question

I have downloaded many vim color schemas and tried them out, but many of them don't look like the official screenshot.

For example, vim's own color schema - desert should look like this:

But in my vim, many colors won't display, for example the background.

But some color schemas work correctly.

Why is that?

In the: Edit-> Profile Preferences -> Colors, I select the "use colors from system theme"

Andromache

I too have found this problem, and I am running the 256 color version of the terminal – Metrist

Best answer I've found: https://mcmap.net/q/355507/-vim-difference-between-t_co-256-and-term-xterm-256color-in-conjunction-with-tmux . Essentially, don't mess with t_Co in your .vimrc, just put this line in your .bashrc: [[ -n "$DISPLAY" && "$TERM" = "xterm" ]] && export TERM=xterm-256color – Putrescible

@moderators: How is this question off topic on a programming site? Vim is an extremely important productivity tool, as is tmux, and when used together the question of colorschemes operating correctly in terminal text mode is very relevant. The proof is that this question pops up on page 1 of a "256 colors in vim" google search. – Resuscitate

Any news on this one? I installed the color theme both for Terminal.app and for vim. $TERM is set correctly, t_Co automatically set to 256, but colors are still broken. – Marillin

Answer 1

Many colorschemes are designed for 256 colors, which is significantly better than a standard 8 color terminal. To make that work, you need $TERM set to a 256 color terminal like xterm-256color.

If you have a 256 color capable terminal (looks like you do from your screenshot if that is Gnome Terminal), set the $TERM to xterm-256color and enable 256 colors in your vimrc with something like:

if $TERM == "xterm-256color"
  set t_Co=256
endif

The Vim wiki has some tips on setting the correct $TERM for different terminal emulators. The easiest way to test this out quickly is to do

TERM=xterm-256color vim 

This will not make colorschemes designed for GUI vim fully compatible with terminal Vim, but will make 256-color colorschemes work, and those are a giant improvement over the standard 8 color colorschemes.

Truax

changing my term to xterm-256color fixed all my issues when I had the same problem as @tanky-woo – Jordans

This had been made me annoyed for years! Finally I found the root cause! I wish I had searched for this topic earlier. – Tarrah

More thorough answer: https://mcmap.net/q/355507/-vim-difference-between-t_co-256-and-term-xterm-256color-in-conjunction-with-tmux . Essentially, don't mess with t_Co in your .vimrc, just put this line in your .bashrc: [[ -n "$DISPLAY" && "$TERM" = "xterm" ]] && export TERM=xterm-256color – Putrescible

Messing with t_Co is fine, don't mess with $TERM - it does more than just dealing with colors – Pictish

how... did... I... not.. know... about... this? – Burglary

This still doesn't work for me, I've done all this and my color schemes still look weird. Any idea what's happening? – Stivers

@Stivers It's hard to say without knowing anything more about your setup. – Truax

Oh actually I think the problem is the themes I was using were 16 colors. I looked for some 256 color themes and they work fine – Stivers

Answer 2

On *nix systems, the very purpose of setting the $TERM environment variable to a terminfo entry that describes your terminal's capabilities, including the number of supported colors is to advertise these capabilities to the applications that will run inside your terminal.

In other words, the reason you set this variable in the first place is to tell Vim (or mutt.. slrn.. ELinks.. etc.) .. Hey.. among other things.. I support 256 colors, did you know..?

As a result, there is no point whatsoever in adding bloat to your vimrc to test the value of $TERM in order to set the value of the t_Co Vim variable. Vim is smart enough to pick up the supported number of colors from the terminfo entry pointed to by the $TERM variable. That's why you set it in the first place..!

In this respect, terminal/console Vim simply follows the *nix model and determines the terminal's capabilities from the terminfo entry and automatically sets the contents of the t_Co variable.

Tried and tested on something like 15 different terminal emulations in a GNU/linux environment.

Nicosia

Ok, fine, but I'm not getting 256 colors on Ubuntu 18.04 when I run vim in the default terminal app. – Born

Answer 3

The first screenshot is GVim, not terminal Vim. Terminals are very limited when it comes to colour support. And GVim can use full RGB space.

Battleship

Nice catch! You are 100% correct, I didn't notice that when first reading through the question :) – Staten

Answer 4

The other answers here are good; I've also found this page very useful for tweaking and understanding the why's and how's of color environments for vim.

Track