pantheon.switchboard-plug-about: fix wallpaper path

Author: bobby285271

pkgs/desktops/pantheon/apps/switchboard-plugs/about/default.nix

@@ -15,6 +15,7 @@
 , switchboard
 , fwupd
 , appstream
+, nixos-artwork
 }:
 
 stdenv.mkDerivation rec {
@@ -53,9 +54,11 @@ stdenv.mkDerivation rec {
   ];
 
   patches = [
-    # The NixOS logo is not centered in the circular background and path
-    # to the background is hardcoded, we will drop the background.
-    ./remove-logo-background.patch
+    # Use NixOS's default wallpaper
+    (substituteAll {
+      src = ./fix-background-path.patch;
+      default_wallpaper = "${nixos-artwork.wallpapers.simple-dark-gray.gnomeFilePath}";
+    })
   ];
 
   meta = with lib; {

pkgs/desktops/pantheon/apps/switchboard-plugs/about/fix-background-path.patch

@@ -0,0 +1,13 @@
+diff --git a/src/Views/OperatingSystemView.vala b/src/Views/OperatingSystemView.vala
+index fdb92e7e..4161538e 100644
+--- a/src/Views/OperatingSystemView.vala
++++ b/src/Views/OperatingSystemView.vala
+@@ -47,7 +47,7 @@ public class About.OperatingSystemView : Gtk.Grid {
+         };
+         logo.set_image_load_func ((size) => {
+             try {
+-                return new Gdk.Pixbuf.from_file_at_scale ("/usr/share/backgrounds/elementaryos-default", -1, size, true);
++                return new Gdk.Pixbuf.from_file_at_scale ("@default_wallpaper@", -1, size, true);
+             } catch (Error e) {
+                 critical (e.message);
+             }