title: Unable to change RaisedButton color
body: <pre><code>RaisedButton(
            onPressed: null,
            child: Text('Get in'), // change it to sign-in
            color: Colors.blue,
          )
  </code></pre>
  
  <p>I am creating this widget under children, but the color is not getting changed from its default grey color. I tried with hex code value but still no help.</p>