mate-control-center: make desktop font setting working

pkgs/desktops/mate/mate-control-center/default.nix

@@ -1,5 +1,5 @@
 { lib, stdenv, fetchurl, pkg-config, gettext, itstool, libxml2, dbus-glib
-, libxklavier, libcanberra-gtk3, librsvg, libappindicator-gtk3
+, libxklavier, libcanberra-gtk3, librsvg, libappindicator-gtk3, glib
 , desktop-file-utils, dconf, gtk3, polkit, mate, hicolor-icon-theme, wrapGAppsHook
 , mateUpdateScript
 }:
@@ -45,6 +45,8 @@ stdenv.mkDerivation rec {
     gappsWrapperArgs+=(
       # WM keyboard shortcuts
       --prefix XDG_DATA_DIRS : "${mate.marco}/share"
+      # Desktop font, works only when passed after gtk3 schemas in the wrapper for some reason
+      --prefix XDG_DATA_DIRS : "${glib.getSchemaDataDirPath mate.caja}"
     )
   '';