title: How to add outline button with circular border and box shadow in Flutter?
body: <p>This is what I got. </p>
  
  <pre><code>OutlineButton(
            padding: EdgeInsets.all(5),
            shape: CircleBorder(),
            borderSide: BorderSide(
                   color: Colors.black,
                   style: BorderStyle.solid,
                   width: 2,
            ),
            onPressed: () =&gt; print("to be implemented"),
            child: Icon(Icons.settings),
   ),
  </code></pre>
  
  <p>How do I go about adding box shadow around these circular borders. I tried putting container inside the outline button and the icon within the container. But then the circular border is messed up if I apply padding.</p>
  
  <p>I tried putting the outline button inside a container. But then the shadows are all over. Container does not glue to the circular shape of the outline button but takes its own shape and applies box shadow.</p>