stylix: add accent color

I spent an hour just to add one f*ing option

modules/user.nix

@@ -9,6 +9,7 @@
     ./user/neofetch.nix
     ./user/qt.nix
     ./user/quickshell.nix
+    ./user/stylix.nix
     ./user/sops.nix
     ./user/ssh.nix
     ./user/walker.nix

modules/user/packages/drvs/ags.nix

@@ -1,15 +1,11 @@
-{ stdenv, lib, config, colors, username, ... }:
+{ stdenv, colors, accent ? colors.base0B, ... }:
   stdenv.mkDerivation {
     name = "AGS theme";
 
     src = ./ags;
     dontUnpack = true;
 
-    patchPhase = let
-      accent = if username == "chest"
-        then colors.base0E
-        else colors.base0B;
-    in ''
+    patchPhase = ''
       echo \$bg:       \#${colors.base00}\;  > colors.scss
       echo \$surface0: \#${colors.base02}\; >> colors.scss
       echo \$fg:       \#${colors.base05}\; >> colors.scss

modules/user/stylix.nix

@@ -0,0 +1,40 @@
+{ config, lib, ... }: let
+  inherit (lib) mkOption types;
+
+  base16Names = [
+    "base00"
+    "base01"
+    "base02"
+    "base03"
+    "base04"
+    "base05"
+    "base06"
+    "base07"
+    "base08"
+    "base09"
+    "base0A"
+    "base0B"
+    "base0C"
+    "base0D"
+    "base0E"
+    "base0F"
+  ];
+in {
+  options.stylix.accent = mkOption {
+    type = types.enum base16Names;
+    default = "base0B";
+    description = ''
+      Base16 colour used as the user accent.
+
+      Use it as:
+
+        config.lib.stylix.colors.${config.stylix.accent}
+        config.lib.stylix.colors.withHashtag.${config.stylix.accent}
+
+      This module deliberately does not extend config.lib.stylix.colors: Stylix
+      exports that value as a generated base16 attrset/functor, and replacing or
+      partially extending it can break Stylix targets which expect metadata such
+      as `scheme` to be present.
+    '';
+  };
+}

user/chest/modules/hyprland.nix

@@ -1,13 +1,14 @@
 { pkgs, lib, config, inputs, ... }: {
   wayland.windowManager.hyprland = let
     colors = config.lib.stylix.colors;
+    accent = colors.${config.stylix.accent};
   in {
     settings = {
       general = {
         gaps_in = 5;
         gaps_out = 5;
         border_size = 2;
-        "col.active_border" = "rgba(${colors.base0E}ee) rgba(${colors.base0C}ee) 45deg";
+        "col.active_border" = "rgba(${accent}ee) rgba(${colors.base0C}ee) 45deg";
         "col.inactive_border" = "rgba(${colors.base05}aa)";
 
         layout = "dwindle";

user/chest/modules/style.nix

@@ -89,6 +89,7 @@ in {
     };
 
     base16Scheme = "${pkgs.base16-schemes}/share/themes/eris.yaml";
+    accent = "base0E";
     polarity = "dark";
 
     image = pkgs.fetchurl {

user/chest/modules/waybar.nix

@@ -175,7 +175,7 @@
 
     style = let
       colors = config.lib.stylix.colors.withHashtag;
-      accent = colors.base0E;
+      accent = colors.${config.stylix.accent};
       scssFile = pkgs.writeText "waybar.scss" /*scss*/ ''
         window#waybar {
           background: transparent;

user/sweetbread/modules/hyprland.nix

@@ -1,6 +1,7 @@
 { pkgs, lib, config, osConfig, inputs, ... }: {
   wayland.windowManager.hyprland = let
     colors = config.lib.stylix.colors;
+    accent = colors.${config.stylix.accent};
 
     wallpaper_changer = pkgs.writers.writePython3Bin "wallpaper_changer" {
       libraries = [ pkgs.python3Packages.requests ];
@@ -57,7 +58,7 @@
         gaps_in = 2;
         gaps_out = 10;
         border_size = 3;
-        "col.active_border" = lib.mkForce "rgba(${colors.base0C}aa) rgba(${colors.base0B}aa) 45deg";
+        "col.active_border" = lib.mkForce "rgba(${colors.base0C}aa) rgba(${accent}aa) 45deg";
 
         layout = "dwindle";
       };

user/sweetbread/modules/style.nix

@@ -105,6 +105,7 @@ in {
     };
 
     base16Scheme = "${pkgs.base16-schemes}/share/themes/catppuccin-mocha.yaml";
+    accent = "base0B";
     polarity = "dark";
 
     image = pkgs.fetchurl {

user/sweetbread/modules/waybar.nix

@@ -155,6 +155,7 @@
 
     style = let
       colors = config.lib.stylix.colors.withHashtag;
+      accent = colors.${config.stylix.accent};
       radius = "6px";
       scssFile = pkgs.writeText "waybar.scss" /*scss*/ ''
         window#waybar {
@@ -199,13 +200,13 @@
           &:hover { background: ${colors.base01}; }
 
           &.active {
-            background: ${colors.base0B};
+            background: ${accent};
             color: ${colors.base00};
 
             &:hover {
-              border-color: ${colors.base0B};
+              border-color: ${accent};
               background: ${colors.base01};
-              color: ${colors.base0B};
+              color: ${accent};
             }
           }
         }
@@ -259,7 +260,7 @@
 
         #battery {
           &.plugged { color: ${colors.base0D}; }
-          &.charging { color: ${colors.base0B}; }
+          &.charging { color: ${accent}; }
           &:not(.charging) {
             &.warning {
               color: ${colors.base00};
@@ -277,7 +278,7 @@
           }
           &.full {
             color: ${colors.base00};
-            background: ${colors.base0B};
+            background: ${accent};
           }
         }