more updates

platforms/home-manager/modules/nmasur/presets/gtk.nix

@@ -0,0 +1,55 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.nmasur.presets.gtk;
+in
+
+{
+
+  options.nmasur.presets.gtk = {
+    enable = lib.mkEnableOption "Gnome GTK settings";
+    theme = {
+      name = lib.mkOption {
+        type = lib.types.str;
+        default = "Adwaita-dark";
+      };
+      package = lib.mkPackageOption pkgs "gnome-themes-extra" { };
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    # Cursor
+    home.pointerCursor = {
+      name = "Adwaita";
+      package = pkgs.adwaita-icon-theme;
+      size = 24;
+      gtk.enable = true;
+      x11.enable = true;
+    };
+
+    # Enable num lock on login
+    xsession.numlock.enable = true;
+
+    # Dark theme
+    gtk = {
+      enable = true;
+      theme = {
+        name = cfg.theme.name;
+        package = cfg.theme.package;
+      };
+      gtk3.extraConfig = {
+        gtk-application-prefer-dark-theme = config.theme.mode == "dark";
+      };
+      gtk4.extraConfig = {
+        gtk-application-prefer-dark-theme = config.theme.mode == "dark";
+      };
+    };
+
+  };
+
+}