diff --git a/conf/app/interfaces.ts b/conf/app/interfaces.ts
index e162d95..1080481 100644
--- a/conf/app/interfaces.ts
+++ b/conf/app/interfaces.ts
@@ -2,6 +2,7 @@
 export interface IStyleConfig {
   projectName: string;
   favicon: string;
+  background: string;
   routes: IXosNavigationRoute[];
 }