title: Less Blur with `Visual Effect View with Blur`?
body: <p>Title pretty much asks it all...</p>
  
  <p>I'm playing with the iOS8 <code>Visual Effect View with Blur</code>. It's over a <code>UIImageView</code> that shows a user choosable background photo. The view placed in the contentView itself is my own custom view, shows a sort of graph/calendar. Most of said calendar graph is transparent. The blur it applies to the photo behind it is really heavy. I'd like to let more of the detail leak through. But Apple only seems to give three canned values:</p>
  
  <pre><code>typedef enum {
      UIBlurEffectStyleExtraLight,
      UIBlurEffectStyleLight,
      UIBlurEffectStyleDark 
  } UIBlurEffectStyle;
  </code></pre>
  
  <p>I've monkied around with different alphas and background colors of the <code>UIVisualEffectView</code> (even though the documentation warns against that), but that doesn't do anything but make it worse.</p>