anchor.diff:                ),
               ),
               new SliverList(
  -                delegate: new SliverChildListDelegate(buildItem())
  +                delegate: new SliverChildListDelegate(buildItem(_posts))
               ),
             ],
           )
       );
     }
   }
  +
  +class Post {
  +  Post({this.title, this.imageUrl, this.description, this.text});
  +
  +  String title;
  +  String imageUrl;
  +  String description;
  +  String text;
  +}
positive.code: import 'package:flutter/material.dart';
  
  
  const double _kFlexibleSpaceMaxHeight = 180.0;
  
  
negative.code:                         gradient: const LinearGradient(
                            begin: Alignment.topCenter,
                            end: Alignment.bottomCenter,
                            stops: const [.7, 1.0],
                            colors: const <Color>[
                              const Color(0x00000000), const Color(0x60FF5722)],
                          ),
  