title: how to use LinearGradient in flutter with transform?
body: <blockquote>
  <p>how to use LinearGradient in flutter with transform?</p>
  </blockquote>
  <pre><code>decoration: BoxDecoration(
      gradient: LinearGradient(
      colors: [Colors.black, Colors.white],
      begin: Alignment.topCenter,
      end: Alignment.bottomCenter,
      transform: ???,
    )
   ),
  </code></pre>