This is only the starter project for this App. Follow my video tutorial then you would make the same app as mine.
https://dribbble.com/shots/14930319-Game-Store-App
This project is a starting point for a Flutter application.
A few resources to get you started if this is your first Flutter project:
For help getting started with Flutter, view our online documentation, which offers tutorials, samples, guidance on mobile development, and a full API reference.