flutter corner radius with transparent background

Question

Below is my code which I expect to render a round-corner container with a transparent background.

return new Container(
                //padding: const EdgeIn         


        

Answer 1

Scaffold(
  appBar: AppBar(
    title: Text('BMI CALCULATOR'),
  ),
  body: Container(
    height: 200,
    width: 170,
    margin: EdgeInsets.all(15),
    decoration: BoxDecoration(
      color: Color(
        0xFF1D1E33,
      ),
      borderRadius: BorderRadius.circular(5),
    ),
  ),
);