title: Flutter TextButton padding
body: <p>With the Flutter 2.0 release, the <code>FlatButton</code> has been replaced with <code>TextButton</code>.</p>
  <p>Hence, the padding property is not longer available directly, but as a <code>ButtonStyle</code> property.</p>
  <p>My problem is, how can I set it since it's no longer available as <code>EdgeInsets</code>?</p>
  <pre class="lang-dart prettyprint-override"><code>TextButton(
     style: new ButtonStyle(
       padding: ???,
     ),
     //padding: const EdgeInsets.all(0),   //NOT AVAILABLE
     child: Text(&quot;Support&quot;, style: Theme.of(context).textTheme.headline2),
        onPressed: () =&gt; {Navigator.pushNamed(context, SupportScreen().routeName)},
     ),
  </code></pre>