grub: Add theme

nixos/hosts/Senko/configuration.nix

@@ -2,6 +2,7 @@
   imports = [
     ./hardware-configuration.nix
     ./secrets/secrets.nix
+    ./modules/grub.nix
     ../../packages.nix
     ../../modules/bundle.nix
     ../../modules/adb.nix

nixos/hosts/Senko/modules/grub.nix

@@ -0,0 +1,13 @@
+{ pkgs, ... }: let
+   theme = pkgs.fetchFromGitHub {
+    owner = "Patato777";
+    repo = "dotfiles";
+    rev = "cc363921707807d7ad3e36b462f0df793a0fe18a";
+    hash = "sha256-fpXGFNrzbV6K9hoZRX4tGieTLzhpPeGm6wn8CF4OGow=";
+   };
+in {
+  boot.loader.grub = {
+    gfxmodeEfi = "1920x1080";
+    theme = "${theme}/grub/themes/virtuaverse";
+  };
+}