title: Flutter ImageIcon showing image white or black
body: <p>So I have been trying to use a picture I have stored in assets and use it as a logo. This way I can animate the logo rather then just having it as a static picture. But the logo keeps showing up just white or when I tried to wrap it and set the colors to null then it shows it all black. So wondering how I get it to show my original image.</p>
  
  <pre><code>new IconTheme(
  data: new IconThemeData(
    color: null,
  ),//IconThemeData
    child: new ImageIcon( new AssetImage("images/logo.png"), color: null, size: _logoAnimation.value * 200),//Logo
  
  ),//IconTheme
  </code></pre>