change backgroud color

covas_mobile/lib/ItemMenu.dart

@@ -148,6 +148,8 @@ class _ItemMenuState extends State<ItemMenu> with ShowErrorDialog {
         // Here we take the value from the MyHomePage object that was created by
         // the App.build method, and use it to set our appbar title.
         title: Text(widget.title),
+        backgroundColor: Colors.blue,
+        foregroundColor: Colors.white,
       ),
       body: Center(
         // Center is a layout widget. It takes a single child and positions it