diff --git a/home/desktop-river/init.nix b/home/desktop-river/init.nix
index bfc2ac6..b513535 100644
--- a/home/desktop-river/init.nix
+++ b/home/desktop-river/init.nix
@@ -19,6 +19,20 @@ let
   dbus-update-activation-environment =
     "${pkgs.dbus}/bin/dbus-update-activation-environment";
 
+  configure-gtk = let
+    schema = pkgs.gsettings-desktop-schemas;
+    datadir = "${schema}/share/gsettings-schemas/${schema.name}";
+    gsettings = "${pkgs.glib}/bin/gsettings";
+  in pkgs.writeScriptBin "configure-gtk" ''
+    #!${shell}
+
+    export XDG_DATA_DIRS=${datadir}:$XDG_DATA_DIRS
+
+    ${gsettings} set org.gnome.desktop.interface gtk-theme 'gruvbox-dark'
+    ${gsettings} set org.gnome.desktop.interface icon-theme 'Papirus-Dark'
+    ${gsettings} set org.gnome.desktop.wm.preferences button-layout ""
+  '';
+
 in {
   xdg.dataFile.river_init = {
     executable = true;
@@ -167,6 +181,7 @@ in {
 
       ${riverctl} spawn "${dbus-update-activation-environment} --systemd WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=river"
       ${riverctl} spawn "systemctl --user import-environment WAYLAND_DISPLAY XDG_CURRENT_DESKTOP=river"
+      ${configure-gtk}/bin/configure-gtk
 
       trackball_names="pointer-21298-5120-Clearly_Superior_Technologies._CST_Laser_Trackball 21298:5120:Clearly_Superior_Technologies._CST_Laser_Trackball"
       for name in $trackball_names; do