title: How to color-fill a black and transparent image in iOS?
body: <p>For example, in the iOS toolbar, you drag in your own .png which is opaque black and transparent, and it automatically adds the iOS blue gloss.</p>
  
  <p>However, I'd like to know how to do this yourself, but just solid colors will do.</p>
  
  <p>For example, if you had this image:
  <img src="https://p.twimg.com/A0jLYKxCEAEqUZB.jpg" alt="Example"></p>
  
  <p>What would you do to make that entire solid, pink, or blue, or grey? I want to cut down on the number of versions of .png's I save in my app by colorizing them with code.</p>
  
  <p>Thank you!</p>