flake: migrate users/profiles -> users/modules

users/modules/global/themeing.nix

@@ -0,0 +1,34 @@
+{ lib, main, config, pkgs, ... }:
+{
+  config = lib.mkIf main.info.graphical {
+    gtk = {
+      enable = true;
+      gtk2.configLocation = "${config.xdg.configHome}/gtk-2.0/gtkrc";
+
+      font = {
+        package = pkgs.dejavu_fonts;
+        name = "DejaVu Sans";
+        size = 10;
+      };
+
+      iconTheme = {
+        package = pkgs.gnome.adwaita-icon-theme;
+        name = "Adwaita-dark";
+      };
+
+      theme = {
+        package = pkgs.gnome.gnome-themes-extra;
+        name = "Adwaita-dark";
+      };
+    };
+
+    qt = {
+      enable = true;
+      style = {
+        package = pkgs.adwaita-qt;
+        name = "adwaita-dark";
+      };
+      platformTheme = "gnome";
+    };
+  };
+}