diff --git a/profiles/gitea.nix b/profiles/gitea.nix
index a16a613..4db802c 100644
--- a/profiles/gitea.nix
+++ b/profiles/gitea.nix
@@ -35,6 +35,9 @@
         RENDER_COMMAND = "${docutils}/bin/rst2html.py";
         IS_INPUT_FILE = false;
       };
+      ui = {
+        DEFAULT_THEME = "arc-green";             # Set the default theme
+      };
     };
   };