title: UIImage won't show on screen
body: <p>I have a <code>UIImage</code> that I'm trying to display at a particular point, but when I call:</p>
  
  <pre><code>image.draw(at: CGPoint.zero)
  </code></pre>
  
  <p>the image never shows. However, if I create a <code>UIImageView</code> with the image and add that imageview to one of the <code>UIStackViews</code> in my view hierarchy, the image is clearly shown. How can I draw my image at the window's origin?</p>