Use specific base16 colours from stylix in configuration

Help
1

I am trying to generalise my starship configuration by using the colours generated by stylix.
My current configuration is currently something like this:

programs.starship = {
  enable = true;
  settings = {
    format = lib.concatStrings [
      "[>] (bg:#${config.stylix.base16Scheme.base01} fg:#${config.stylix.base16Scheme.base02})"
    ];
  };
};

But this config results in the error

expected a set but found a path

How could I fix this correctly?

I have seen multiple configs do it in a similar way with rgb colors

"col.inactive_border" = lib.mkForce "rgb(${config.stylix.base16Scheme.base00})";
2

Please post the full error, without truncation.

3

This is the full error log

error:
       … while calling the 'head' builtin
         at /nix/store/sj9yrq21wbbfr5715hys3laa2qd6x471-source/lib/attrsets.nix:1575:11:
         1574|         || pred here (elemAt values 1) (head values) then
         1575|           head values
             |           ^
         1576|         else

       … while evaluating the attribute 'value'
         at /nix/store/sj9yrq21wbbfr5715hys3laa2qd6x471-source/lib/modules.nix:809:9:
          808|     in warnDeprecation opt //
          809|       { value = builtins.addErrorContext "while evaluating the option `${showOption loc}':" value;
             |         ^
          810|         inherit (res.defsFinal') highestPrio;

       … while evaluating the option `system.build.toplevel':

       … while evaluating definitions from `/nix/store/sj9yrq21wbbfr5715hys3laa2qd6x471-source/nixos/modules/system/activation/top-level.nix':

       … while evaluating the option `home-manager.users.ryan.home.file':

       … while evaluating definitions from `/nix/store/hxhym8c5xz6dxkl3d9yppiwlnzk3khn7-source/modules/misc/xdg.nix':

       … while evaluating the option `home-manager.users.ryan.xdg.configFile':

       … while evaluating definitions from `/nix/store/hxhym8c5xz6dxkl3d9yppiwlnzk3khn7-source/modules/programs/starship.nix':

       … while evaluating the option `home-manager.users.ryan.programs.starship.settings':

       … while evaluating definitions from `/nix/store/96658vnddms3ywd0vj9bp0p2qpqpfk5z-178d5zpsvbvgp9w635xaddgyxc2mz9jq-source/modules/home/programs/starship/default.nix':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: expected a set but found a path: /nix/store/96658vnddms3ywd0vj9bp0p2qpqpfk5z-178d5zpsvbvgp9w635xaddgyxc2mz9jq-source/modules/home/programs/stylix/base16/catppuccin/mocha.yaml
4

In that case, I can only deduce that you set stylix.base16Scheme to be a path, instead of a set.

5

I can confirm

I get the same error because I define stylix.base16Scheme to be a path to a yaml file

code snippet:

# ./flake.nix
inputs = {
    stylix.url = "github:danth/stylix";
    vity-base24 = {
      url = "github:Alexdelia/vity-base24";
      flake = false;
    };
};

# ./some_module.nix
{
  inputs,
  ...
}: {
  stylix = {
    enable = true;

    base16Scheme = "${inputs.vity-base24}/vity.yaml";
  };
}

all settings apply correctly

but when I try to modify my kitty configuration (or any other) by manually referencing base16Scheme.base00 for the background:

# ./home/kitty/default.nix
{
  config,
  ...
}: {
  programs = {
    kitty = {
      enable = true;

      settings = {
        background = config.stylix.base16Scheme.base00;
      };
    };
  };

  stylix.targets.kitty.enable = false;
}

I get the error:

error: value is a string with context while a set was expected

builtins.trace config.stylix.base16Scheme gives:

trace: /nix/store/sc9...ch2-source/vity.yaml

(it is indeed the yaml file I expect)

which makes sense, but now I don’t know how to access the base00 color when I give a yaml file to base16Scheme

note that if base16Scheme is define as a nix set, this solution does work
see Goxore code:

I’m gonna try to find a solution to be able to access all color from the scheme when loaded from a yaml file

if/when I find the solution, you will probably be able to find it here:

6

very happy to say that I found the solution … kinda

after digging builtins.stylix

see output ```nix { autoEnable = true; base16Scheme = "/nix/store/sc94g74nm6lmdp8ybdjmafpzcbshbch2-source/vity.yaml"; cursor = { name = "Vimix-Cursors-White"; package = ; size = 32; }; enable = true; fonts = { emoji = ; monospace = { name = "SourceCodePro Nerd Font"; package = ; }; packages = ; sansSerif = { name = "RobotoMono Nerd Font"; package = ; }; serif = ; sizes = { applications = 14; desktop = 14; popups = ; terminal = 16; }; }; generated = { fileTree = { "stylix/generated.json" = {source = ;}; "stylix/palette.html" = {source = ;}; "stylix/palette.json" = {source = ;}; }; json = ; palette = ; }; image = "/nix/store/s2hf8gqpal4rmi0sdma3ybb3alp8a6mk-wallhaven-o31o2p.png"; imageScalingMode = ; opacity = ; override = {}; palette = ; polarity = ; targets = { alacritty = ; avizo = ; bat = ; bemenu = ; bspwm = ; btop = {enable = true;}; dunst = ; emacs = ; feh = ; firefox = ; fish = ; foot = ; fuzzel = ; fzf = ; gedit = {enable = true;}; gitui = ; gnome = {enable = true;}; gtk = { enable = true; extraCss = ; }; helix = {enable = true;}; hyprland = {enable = true;}; hyprpaper = {enable = true;}; i3 = ; k9s = ; kde = {enable = true;}; kitty = { enable = false; variant256Colors = ; }; lazygit = ; mako = ; mangohud = ; ncspot = ; neovim = { enable = true; transparentBackground = { main = false; signColumn = false; }; }; nixvim = ; nushell = ; qutebrowser = ; rofi = ; sway = ; swaylock = ; sxiv = {enable = true;}; tmux = ; tofi = ; vesktop = {enable = true;}; vim = ; vscode = {enable = false;}; waybar = ; wezterm = {enable = true;}; wofi = ; wpaperd = ; xfce = {enable = false;}; xresources = {enable = true;}; yazi = ; zathura = ; zellij = ; }; } ```

I found config.stylix.generated.palette

which evaluate (in my config) to:

config.stylix.generated.palette = {
  author = "Stylix";
  base00 = "1d1a19";
  base01 = "68393f";
  base02 = "4c6d93";
  base03 = "81a3b8";
  base04 = "d9b187";
  base05 = "d4e5ef";
  base06 = "ffefd0";
  base07 = "fef0cf";
  base08 = "878fa0";
  base09 = "88929a";
  base0A = "aa8b5f";
  base0B = "ac8a6b";
  base0C = "b18875";
  base0D = "7095af";
  base0E = "c97c5a";
  base0F = "bb855e";
  scheme = "Stylix";
  slug = "stylix";
}

which is perfect

well, that’s a lie, it uses the generated base16 from the stylix.image, not the one given in base16Scheme

so you can do:

# ./home/kitty/default.nix
{
  config,
  ...
}: {
  programs = {
    kitty = {
      enable = true;

      settings = {
        background = "#${config.stylix.generated.palette.base00}";
      };
    };
  };

  stylix.targets.kitty.enable = false;
}

but it won’t use the base16Scheme

gonna try to dig more…
7

made it work through the use of base16.nix (which is used by stylix)

here is the commit with just the change needed to make it work:

8

Sorry for the necro, but I found config.lib.stylix.colors.base00 which should be an easier way to achieve this.