stylix/modules/nixos-icons/nixos.nix

{ pkgs, config, lib, ... }:

with config.lib.stylix.colors;

{
  options.stylix.targets.nixos-icons.enable =
    config.lib.stylix.mkEnableTarget "the NixOS logo" true;

  config.nixpkgs.overlays = lib.mkIf config.stylix.targets.nixos-icons.enable [(self: super: {
    nixos-icons = super.nixos-icons.overrideAttrs (oldAttrs: {
      src = pkgs.applyPatches {
        src = oldAttrs.src;
        prePatch = ''
          substituteInPlace logo/nix-snowflake-white.svg --replace-fail '#ffffff' '#${base05}'

          # Insert attribution comment after the XML prolog
          sed \
            --in-place \
            '2i<!-- The original NixOS logo from ${oldAttrs.src.url} is licensed under https://creativecommons.org/licenses/by/4.0 and has been modified to match the ${scheme} color scheme. -->' \
            logo/nix-snowflake-white.svg
      '';
      };
    });
  })];
}