title: How do one identify the required widget class properties in flutter
body: <p>I'm currently learning flutter and i quiet appreciate the learnng curve. But I have a challenge. The tutorials i have what they kept more emphasis on reading more about flutter widget on flutter.io to know more about the widget. I have done that but i still dont understand it.
  E.g: The container class properties have a decoration property. I went to check it on flutter site and i saw it there. But in the decoration properties flutter didn't add BoxDecoration. So how do one know that BoxDecoration must be called when on is using the decoration property of the Container class.</p>
  
  <p>decoration: BoxDecoration(
  color:Colors.teal,
  borderRadius:BorderRadius.circular(12,
  <a href="https://i.stack.imgur.com/6iaSm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6iaSm.png" alt="enter image description here"></a>
  <strong>strong text</strong></p>