title: Custom Card Shape Flutter SDK
body: <p>I have developed an app with GridView on Flutter. GridView items are Card and the default card shape is Rectangle with a radius of 4.</p>
  <p>I know there is shape property for Card Widget and it takes ShapeBorder class but I am unable to find how to use ShapeBorder class and customize my cards in GridView.</p>
  <p>How do I go about this?</p>