title: How to create a modal bottomsheet with circular corners in Flutter?
body: <p><strong>showModalBottomSheet</strong> does not provide any styling or decorations. I want to create something like the Google Tasks bottomsheet.</p>
  
  <p><a href="https://i.stack.imgur.com/cKTIT.png" rel="noreferrer"><img src="https://i.stack.imgur.com/cKTIT.png" alt="google tasks bottomsheet"></a></p>