Change gtk and qt themes

modules/desktop/themes/gtk.nix

@@ -0,0 +1,44 @@
+{ inputs, config, lib, pkgs, ... }:
+
+with lib;
+with lib.my;
+let cfg = config.modules.desktop.themes.gtk;
+in {
+  options.modules.desktop.themes.gtk = { enable = mkBoolOpt false; };
+
+  config = mkIf cfg.enable {
+
+    systemd.packages = [ pkgs.dconf ];
+
+    services.dbus.packages = with pkgs; [ dconf ];
+
+    home-manager.users.${config.user.name} = {
+
+      gtk = {
+        enable = true;
+        theme = { name = "gruvbox-dark"; };
+        iconTheme = { name = "gruvbox-dark"; };
+      };
+
+      home = {
+
+        pointerCursor = {
+          package = pkgs.paper-icon-theme;
+          name = "Paper";
+          size = 24;
+          gtk.enable = true;
+          x11.enable = true;
+        };
+
+        file = {
+          ".themes/gruvbox-dark" = {
+            source = "${inputs.gruvbox-gtk-theme}/themes/Gruvbox-Dark-BL";
+          };
+          ".icons/gruvbox-dark" = {
+            source = "${inputs.gruvbox-gtk-theme}/icons/Gruvbox-Dark";
+          };
+        };
+      };
+    };
+  };
+}