title: How can I ‘shine’ a png on the iPhone in code?
body: <p>How do I replicate the effect that the app launcher uses on a square .png to show my users what their icon will look like as an app badge.</p>
  
  <p>NB - I want to do this in code on the iPhone, not in photoshop on my computer.</p>
  
  <p>Thanks!</p>
  
  <p>edit: trying to be really clear here. How do I do this with <em>code</em>!
  I have tried creating an overlay, but the shine apple does actually brightens the top, so just putting a png over the top will not give the same effect.</p>
  
  <p>Presumably the app launcher applies some CA effects - does anyone know how to duplicate them???</p>