Index: src/routes/og.js
===================================================================
--- src/routes/og.js	(revision 69815b232bc91b7504ea8b28d3e2f66949f216ed)
+++ src/routes/og.js	(revision f0807ccbe98f3d66387e31b7aa4acaaa58ddaf4e)
@@ -14,5 +14,5 @@
   try {
     site = db.prepare(
-      'SELECT slug, title, tagline, description, palette, accent FROM sites WHERE slug = ?'
+      'SELECT slug, title, tagline, description, palette, accent, theme_override FROM sites WHERE slug = ?'
     ).get(req.params.slug);
   } catch { /* db error → 404 below */ }