feat(gui): add catppuccin gtk and cursor themes

home/gnome/impl/home.nix

@@ -4,23 +4,6 @@
 , ... }: with lib; let
   cfg = config.passthrough.gnome;
 in mkIf cfg.enable {
-  # cursor theme
-  home.pointerCursor = {
-    package = pkgs.catppuccin-cursors.frappeDark;
-    name = "Catppuccin-Frappe-Dark-Cursors";
-  };
-
-  # gtk theme
-  gtk.theme = {
-    package = pkgs.catppuccin-gtk.override {
-      accents = [ "pink" ];
-      size = "compact";
-      #tweaks = [ "rimless" "black" ];
-      variant = "frappe";
-    };
-    name = "Catppuccin-Frappe-Compact-Pink-Dark";
-  };
-
   home.packages =
   with pkgs;
   with gnome;

home/gui/catppuccin/home.nix

@@ -0,0 +1,13 @@
+{ pkgs
+, lib
+, config
+, ... }: with lib; let
+  cfg = config.passthrough.catppuccin;
+in mkIf cfg.enable {
+  # cursor theme
+  home.pointerCursor = { inherit (cfg.cursor) package name; };
+  gtk.cursorTheme = { inherit (cfg.cursor) package name; };
+
+  # gtk theme
+  gtk.theme = { inherit (cfg.gtk) package name; };
+}

home/gui/catppuccin/nixos.nix

@@ -0,0 +1,64 @@
+{ pkgs
+, lib
+, config
+, ... }: with lib; let
+  gui = with config.global.gpu; enable && session;
+  cfg = config.home.catppuccin;
+in {
+  options.home.catppuccin = {
+    enable = mkEnableOption "catppuccin colour scheme" // { default = gui; };
+
+    gtk = {
+      package = mkOption {
+        type = with types; package;
+        default = pkgs.catppuccin-gtk.override {
+          accents = [ "pink" ];
+          size = "compact";
+          #tweaks = [ "rimless" "black" ];
+          variant = "frappe";
+        };
+        description = "catppuccin gtk theme package";
+      };
+      name = mkOption {
+        type = with types; str;
+        default = "Catppuccin-Frappe-Compact-Pink-Dark";
+        description = "name of catppuccin gtk theme";
+      };
+    };
+
+    cursor = {
+      package = mkOption {
+        type = with types; package;
+        default = pkgs.catppuccin-cursors.frappeDark;
+        description = "catppuccin cursor theme package";
+      };
+      name = mkOption {
+        type = with types; str;
+        default = "Catppuccin-Frappe-Dark-Cursors";
+        description = "name of catppuccin cursor theme";
+      };
+    };
+  };
+
+  config = {
+    users.homeModules = [
+      # this module passes catppuccin configuration to home-manager
+      { passthrough.catppuccin = cfg; }
+    ];
+
+    # gtk and cursor themes
+    environment.systemPackages = with cfg; mkIf cfg.enable [
+      gtk.package cursor.package
+    ];
+
+    # override greetd theme
+    programs.regreet = mkIf cfg.enable {
+      settings = {
+        GTK = {
+          cursor_theme_name = cfg.cursor.name;
+          theme_name = cfg.gtk.name;
+        };
+      };
+    };
+  };
+}

home/gui/home.nix

@@ -1,29 +1,33 @@
 { pkgs
 , lib
 , config
-, ... }: with lib; mkIf config.passthrough.gui {
-  # cursor theme
-  home.pointerCursor = {
-    package = mkDefault pkgs.bibata-cursors;
-    name = mkDefault "Bibata-Modern-Classic";
-    size = 24;
+, ... }: with lib; {
+  imports = [ ./catppuccin/home.nix ];
+
+  config = mkIf config.passthrough.gui {
+    # cursor theme
+    home.pointerCursor = {
+      package = mkDefault pkgs.bibata-cursors;
+      name = mkDefault "Bibata-Modern-Classic";
+      size = 24;
+    };
+
+    # gtk theme
+    gtk.theme = {
+      package = mkDefault pkgs.whitesur-gtk-theme;
+      name = mkDefault "WhiteSur-Dark";
+    };
+
+    # gtk icons
+    gtk.iconTheme = {
+      package = mkDefault pkgs.papirus-icon-theme;
+      name = mkDefault "Papirus-Dark";
+    };
+
+    # unify qt theme
+    qt.platformTheme = mkDefault "gtk";
+
+    gtk.enable = mkDefault true;
+    qt.enable = mkDefault true;
   };
-
-  # gtk theme
-  gtk.theme = {
-    package = mkDefault pkgs.whitesur-gtk-theme;
-    name = mkDefault "WhiteSur-Dark";
-  };
-
-  # gtk icons
-  gtk.iconTheme = {
-    package = mkDefault pkgs.papirus-icon-theme;
-    name = mkDefault "Papirus-Dark";
-  };
-
-  # unify qt theme
-  qt.platformTheme = mkDefault "gtk";
-
-  gtk.enable = mkDefault true;
-  qt.enable = mkDefault true;
 }

home/gui/nixos.nix

@@ -3,7 +3,10 @@
 , config
 , ... }: with lib; let
   gui = with config.global.gpu; enable && session;
+  catppuccin = config.home.catppuccin;
 in {
+  imports = [ ./catppuccin/nixos.nix ];
+
   config = {
     users.homeModules = [
       # this module passes gui configuration to home-manager
@@ -12,10 +15,13 @@ in {
     users.adminGroups = mkIf gui [ "video" ];
 
     # themes and icons
-    environment.systemPackages = with pkgs; mkIf gui [
-      whitesur-gtk-theme whitesur-icon-theme
-      papirus-icon-theme bibata-cursors
-    ];
+    environment.systemPackages = with pkgs; mkIf gui ([
+      papirus-icon-theme
+    ] ++ optionals (!catppuccin.enable) [
+      whitesur-gtk-theme
+      whitesur-icon-theme
+      bibata-cursors
+    ]);
 
     fonts.enableDefaultPackages = mkIf gui true;