Index: trunk/admin/include/tabs.js
===================================================================
diff -u -r964 -r1016
--- trunk/admin/include/tabs.js	(.../tabs.js)	(revision 964)
+++ trunk/admin/include/tabs.js	(.../tabs.js)	(revision 1016)
@@ -96,6 +96,9 @@
 		case 'custom_name':
 			result = ValidCustomName(FieldValue);
 			break;
+		case 'theme_name':
+			result = ValidThemeName(FieldValue);
+			break;
 	}
 	return result;
 }