diff --git a/common/generic-desktop.nix b/common/generic-desktop.nix
index 62cdc1f..d0f00e4 100644
--- a/common/generic-desktop.nix
+++ b/common/generic-desktop.nix
@@ -13,6 +13,8 @@
 
   boot.plymouth = {
     enable = true;
+    themePackages = [(pkgs.catppuccin.override { variant = "mocha"; accent = "mauve"; })];
+    theme = "catppuccin-mocha";
   };
   boot.initrd.systemd.enable = true;
 
diff --git a/common/generic-uefi-zfs.nix b/common/generic-uefi-zfs.nix
index 9c58067..3f25a8e 100644
--- a/common/generic-uefi-zfs.nix
+++ b/common/generic-uefi-zfs.nix
@@ -4,6 +4,7 @@
     zfsSupport = true;
     efiSupport = true;
     efiInstallAsRemovable = true;
+    theme = "${pkgs.catppuccin.override { variant = "mocha"; accent = "mauve"; }}/grub";
     mirroredBoots = [
       { devices = [ "nodev"]; path = "/boot"; }
     ];
diff --git a/hosts/loona/configuration.nix b/hosts/loona/configuration.nix
index 849ddde..41bd90e 100644
--- a/hosts/loona/configuration.nix
+++ b/hosts/loona/configuration.nix
@@ -36,7 +36,10 @@
       enable = true;
       xkb.layout = "gb";
     };
-    displayManager.sddm.enable = true;
+    displayManager.sddm = {
+      enable = true;
+      theme = "catppuccin-mocha";
+    };
     desktopManager.plasma6.enable = true;
   };
 
@@ -67,6 +70,11 @@
   };
 
   environment.sessionVariables = { LIBVA_DRIVER_NAME = "iHD"; };
+  environment.systemPackages = with pkgs; [
+    (catppuccin-sddm.override {
+      flavor = "mocha";
+    })
+  ];
 
   boot.extraModulePackages = with config.boot.kernelPackages; [ xpadneo ];