How to solve my app’s poor animations caused by an expensive
Dart async function call that is blocking the UI thread?
    
      Spawn another isolate using the compute() method,
as demonstrated in Parse JSON in the background cookbook.

How do I determine my Flutter app’s package size that a
user will download?
    
      See Measuring your app’s size

How do I see the breakdown of the Flutter engine size?
    
      Visit the binary size dashboard, and replace the git
hash in the URL with a recent commit hash from
GitHub engine repository commits.

How can I take a screenshot of an app that is running and export it
as a SKP file?
    
      Run flutter screenshot --type=skia --observatory-uri=...