title: UIActionSheet without background tinting
body: <p>So I've read <a href="https://stackoverflow.com/questions/1181272/iphone-development-how-to-create-colored-or-translucent-background-for-uiaction">this post</a></p>
  
  <p>But it doesn't seem to deal with the issue of making the background NOT tint to a semi-transparent.  I want the content behind the menu with buttons to be clearly visible.  Is this even possible?</p>
  
  <p>This is what I have currently</p>
  
  <pre><code>WPSActionSheet *actionSheet = [[WPSActionSheet alloc] initWithCompletion:completion];
    [actionSheet setTitle:@""];
    [actionSheet addButtonWithTitle:@"Take Photo"];
    [actionSheet addButtonWithTitle:@"Choose from Library"];
    [actionSheet addButtonWithTitle:@"Skip This Step"];
    [actionSheet setCancelButtonIndex:2];
    [actionSheet showInView:[self view]];
  </code></pre>
  
  <p>which shows this</p>
  
  <p><img src="https://i.stack.imgur.com/MAJ4K.png" alt="enter image description here"></p>