anchor.diff:    }
   }
   
  -class MainScafold extends StatelessWidget{
  +class MainScaffold extends StatelessWidget{
     @override
     Widget build(BuildContext context) {
       return new Scaffold(
  
positive.code:       body: new MainComposer(),
      );
    }
  }
  
  
  
  
  
  
  
  
  
negative.code:       theme:new ThemeData(
            primaryColor: Colors.pink
        ),
        home: new MainScaffold(),
        routes: <String, WidgetBuilder>{
          "/jsonNetwork":(BuildContext context) => new NetworkApp(),
          "/layout_app":(BuildContext context)=> new LayoutApp(),
  