How to override one specific color of a scheme ?

[avario-cpu]

What Operating System(s) are you running on?

Windows

Which Wayland compositor or X11 Window manager(s) are you using?

No response

WezTerm version

wezterm 20240203-110809-5046fc22

Ask your question!

I am aware that ...

local wezterm = require 'wezterm'

local scheme = wezterm.color.get_builtin_schemes()['Gruvbox Light']
scheme.background = 'red'

return {
  color_schemes = {
    -- Override the builtin Gruvbox Light scheme with our modification.
    ['Gruvbox Light'] = scheme,

    -- We can also give it a different name if we don't want to override
    -- the default
    ['Gruvbox Red'] = scheme,
  },
  color_scheme = 'Gruvbox Light',
}

... Is a thing but it does not seem to cover my use case at all. How do I change a value in the scheme that is associated with a specific syntax higlight ? Like change the color of whatever highlight group would be assigned for pwsh args like -Recurse or -Force ?

[bew]

I think you are confused, a terminal like wezterm has no knowledge of what is being displayed and does not have syntax highlight groups, it just knows about cells and their current color based on what the running program told the terminal how these cells should be printed at the time.

So in this case it is Powershell that defines that some part of its output should be colored in X color, and when printing a folder name for example powershell just tells the terminal "for the next stuff I print, color it in that specific blue", then after the name powershell tells the terminal "for the next stuff, reset the color".

I'd suggest you look into configuration of Powershell if you want to change how the output is colored.
(although I don't think powershell has much configuration for that kind of things..)

(hopefully it helps you see the difference, don't hesitate to ask further question)

[avario-cpu]

Oh okay I was applying a flawed logic to this. Thanks a lot for pointing it out ! So these are the value I want to change right:

OperatorColor                          : "`e[90m"
ParameterColor                         : "`e[90m"

Which afaik are the ones who correspond to "bright black" ? Will look into replacing these values only for my current theme and report.

[avario-cpu]

Ok so figured it out. For someone else who would want to do this...

1. get-PSReadLineOption in pwsh will show you the ansi espace codes for the associated powershell syntax. (Same output as above)
2. The table below will show matches between ansi sequences and "WezTerm colors"
   

We can then set cherry picked colors this way:

local scheme_name = "tokyonight_moon"
local scheme = wezterm.color.get_builtin_schemes()[scheme_name]

config.color_scheme = scheme_name
scheme.brights[1] = "#ff69b4" -- Set bright black to bright pink for testing (or if u like pink, its ok to like pink)
config.colors = scheme

And if you want custom tab colors, like I do too, I think we then have to use:

config.colors.tab_bar = {
	background = "#16161e"
	active_tab = {
	    -- code
	},
	-- etc ..
}

because using:

config.colors = {
    tab_bar = {
     -- code
    }
}

... Like I initially did seems to not take the previous color setting in account. Altough I'm not sure and don't really understand what invoking the same key does to lua table (merge or override). Probably could still do it with some extend syntax or wathever, idk lua, I'm learning.

If this is useful to someone then cool. ❤️

[Alien-lv426]

Out of interest, why not use

Set-PSReadLineOption -Colors @{}

without needing to involve wezterm?

[avario-cpu]

Unaware of that option lol

Without looking into it I would have maybe assumed intuitively that colors set by pwsh this way would be overridden by the wezterm scheme. Which is prob not the case if they are set to RGB hex ?

[bew]

Yeah if you set rgb colors in powershell config' it will just use that color and you don't need to tweak colors in terminal's config

[Alien-lv426]

For example:

Set-PSReadLineOption -Colors @{ Operator = 'Red' Parameter = 'Yellow' }