update plymouth themes

hosts/skipper/plymouth.nix

@@ -1,9 +1,9 @@
-{ pkgs, ... }: {
-  boot.plymouth = let theme = "rog_2"; in {
+{ lib, pkgs, ... }: {
+  boot.plymouth = let theme = "angular"; in {
     enable = true;
-    themePackages = [
+    themePackages = lib.mkDefault [
       (pkgs.adi1090x-plymouth-themes.override { selected_themes = [ theme ]; })
     ];
-    inherit theme;
+    theme = lib.mkDefault theme;
   };
 }

hosts/skipper/specialisations.nix

@@ -1,13 +1,24 @@
 { lib
 , pkgs
 , ...
-}: {
+}:
+let
+  plymouth = let theme = "angular_alt"; in {
+    enable = true;
+    themePackages = lib.mkForce [
+      (pkgs.adi1090x-plymouth-themes.override { selected_themes = [ theme ]; })
+    ];
+    theme = lib.mkForce theme;
+  };
+in
+{
   specialisation = {
     xanmod = {
       inheritParentConfig = true;
       configuration = {
         boot = {
           kernelPackages = lib.mkForce pkgs.linuxPackages_xanmod_latest;
+          inherit plymouth;
         };
         system.nixos.tags = [ "with-xanmod" ];
       };
@@ -17,6 +28,7 @@
       configuration = {
         boot = {
           kernelPackages = lib.mkForce pkgs.linuxPackages_zen;
+          inherit plymouth;
         };
         system.nixos.tags = [ "with-zen" ];
       };