[tohru] Modularise GNOME config

home/gnome/appearance.nix

@@ -0,0 +1,25 @@
+{ config, lib, pkgs, ... }:
+
+{
+  dconf = {
+    enable = true;
+    settings =
+      let
+        backgroundOptions = {
+          color-shading-type = "solid";
+          picture-options = "zoom";
+          picture-uri = "${config.home.homeDirectory}/.background-image";
+          primary-color = "#3a4ba0";
+          secondary-color = "#2f302f";
+        };
+      in
+      {
+        "org/gnome/desktop/background" = backgroundOptions // {
+          picture-uri-dark = backgroundOptions.picture-uri;
+        };
+        "org/gnome/desktop/screensaver" = backgroundOptions;
+        "org/gnome/desktop/interface".color-scheme = "prefer-dark";
+      };
+  };
+  home.file.".background-image".source = ./background-image.jpg;
+}

home/gnome/default.nix

@@ -0,0 +1,8 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [
+    # TODO: nix-ify other parts of GNOME config
+    ./appearance.nix
+  ];
+}