finally caved and removed my redundant color scheme definition in the flake.nix file to use stylix's built-in color scheme definition

flake.nix

@@ -41,31 +41,6 @@
   } @ inputs: let
     system = "x86_64-linux";
     username = "pagedmov";
-    wallpaper = "${self}/assets/wallpapers/sleeping-blackmetal.png";
-    base16scheme = "black-metal-immortal"; # can be easily changed with the chscheme script
-
-    # Map colors from yaml to attribute set
-    # Extracting colors into a set here allows them to be propagated across the entire config, with or without stylix
-    lib = nixpkgs.lib;
-    pkgs = import nixpkgs {system = "x86_64-linux";};
-    scheme_path = "${pkgs.base16-schemes}/share/themes/${base16scheme}.yaml";
-    scheme_string = builtins.readFile scheme_path;
-    scheme_list = lib.splitString "\n" "${scheme_string}";
-    colors = lib.filter (line: builtins.match "^ *base[0-9A-F]{2}: .*" line != null) scheme_list;
-    scheme =
-      lib.lists.foldl' (
-        acc: line: let
-          splitLine = lib.splitString ": " line;
-          key = builtins.elemAt splitLine 0;
-          value = builtins.elemAt splitLine 1;
-          trimmedKey = lib.trim key;
-          cleanValue_step1 = lib.splitString " " value;
-          cleanValue_step2 = builtins.elemAt cleanValue_step1 0;
-          cleanValue_final = builtins.substring 1 (builtins.stringLength cleanValue_step2 - 2) cleanValue_step2;
-        in
-          acc // {"${trimmedKey}" = cleanValue_final;}
-      ) {}
-      colors;
   in {
     homeManagerModules.default = ./modules/home;
 
@@ -73,7 +48,7 @@
       oganesson = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "oganesson";
-          inherit self inputs scheme wallpaper username;
+          inherit self inputs username;
         };
         inherit system;
         modules = [
@@ -88,7 +63,7 @@
       mercury = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "mercury";
-          inherit self inputs scheme wallpaper username;
+          inherit self inputs username;
         };
         modules = [
           ./hosts/laptop/config.nix
@@ -102,7 +77,7 @@
       xenon = nixpkgs.lib.nixosSystem {
         specialArgs = {
           host = "xenon";
-          inherit self inputs scheme username;
+          inherit self inputs username;
         };
         modules = [
           ./hosts/server/config.nix