title: iOS UIButton how does one make beautiful buttons like this?
body: <p>Is this a UIButton?  If it is, how is the background red done?  Obviously, it is not
  red UIColor?  Is there same tool or utility included with Xcode to allow making buttons
  like this?  </p>
  
  <p><img src="https://i.stack.imgur.com/UzI2s.jpg" alt="enter image description here"></p>