title: How to use different notification icon in Android for the notification area and the notification drawer
body: <p>I'm setting an icon, by using a .png in white, transparent background.
  It's working ok when displaying in the lock screen, and in the notification area.</p>
  
  <p>The icon is the highlighted in yellow:
  <a href="https://i.stack.imgur.com/eNhmv.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>Now in the notification drawer the icon is shown in white too (is the same icon).
  <a href="https://i.stack.imgur.com/2Bu4y.png" rel="nofollow noreferrer">enter image description here</a></p>
  
  <p>But I would like to use another icon, in this case the truck in blue.
  Right now I'm setting the color to blue by using Notification.Builder.SetColor(), and the title appears in that color.</p>
  
  <p>You can see how the Gmail icon displays in white in the status bar, and red in the drawer.</p>
  
  <p>This is the actual code to build the notification.
  Code is for Xamarin.Droid</p>
  
  <pre><code>var notificationManager = GetSystemService(Context.NotificationService) as NotificationManager;
  
  Notification.Builder builder = new Notification.Builder(this)
                  .SetContentTitle(title)
                  .SetContentText(desc)
                  .SetSmallIcon(Routes.Droid.Resource.Drawable.truck)
                  .SetAutoCancel(true);
  builder.SetLargeIcon(BitmapFactory.DecodeResource(Resources, Resource.Drawable.truckColor));
  builder.SetColor(Android.Graphics.Color.Rgb(33,150,243));
  
  var notification = new Notification.BigTextStyle(builder).BigText(desc).Build();
  
  notificationManager.Notify(-1, notification);
  </code></pre>
  
  <p>How can I set the icon color in the notification drawer, or use different icons? </p>
  
  <p>The objective is to display the icon in white in the notification area, and in blue in the notification drawer.</p>