diff --git a/common/server/gitea.nix b/common/server/gitea.nix
index 8101a63..73b5c26 100644
--- a/common/server/gitea.nix
+++ b/common/server/gitea.nix
@@ -23,6 +23,9 @@ in {
         other = {
           SHOW_FOOTER_VERSION = false;
         };
+        ui = {
+          DEFAULT_THEME = "arc-green";
+        };
       };
     };
     services.nginx.enable = true;