Update manifest.json

Author: Nickwasused

manifest.json

@@ -31,7 +31,7 @@
     "type": "image/png"
     }],
   "start_url": "/",
-  "background_color": "#f2f3f5",
+  "background_color": "#f60",
   "display": "standalone",
   "theme_color": "#f60"
 }