title: How to use an image instead of an icon in flutter?
body: <p>I am currently doing something like this</p>
  
  <pre><code>new Tab(icon: new Icon(Icons.arrow_forward), text: "Browse"),
  </code></pre>
  
  <p>However I would like to use an image as an icon . I get images using </p>
  
  <pre><code>new Image.asset("assets/img/logo.png"),
  </code></pre>
  
  <p>My question is how can i use that image as an icon in my tab shown above ?</p>