Modularize the DE config

modules/home/de/theming.nix

@@ -0,0 +1,48 @@
+{
+    config,
+    pkgs,
+    lib,
+    ...
+}: let
+    cfg = config.myConfig.de;
+in {
+    options.myConfig.de = {
+        theming.enable = lib.mkEnableOption "";
+        wallpaper = lib.mkOption {
+            type = lib.types.path;
+        };
+    };
+
+    config = lib.mkIf cfg.theming.enable {
+        dconf.settings."org/gnome/desktop/interface".color-scheme = "prefer-dark";
+
+        gtk = {
+            enable = true;
+
+            gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";
+
+            theme.name = "Adwaita-dark";
+            theme.package = pkgs.gnome.gnome-themes-extra;
+
+            iconTheme.name = "Adwaita";
+            iconTheme.package = pkgs.gnome.adwaita-icon-theme;
+
+            font.name = "Open Sans";
+            font.package = pkgs.open-sans;
+        };
+
+        qt = {
+            enable = true;
+            platformTheme = "gtk";
+            style.name = "adwaita-dark";
+            style.package = pkgs.adwaita-qt;
+        };
+
+        home.pointerCursor = {
+            name = "Bibata-Original-Classic";
+            package = pkgs.bibata-cursors;
+            size = 24;
+            gtk.enable = true;
+        };
+    };
+}