title: what is use of this state config focused ios UIButton?
body: <p><a href="https://i.stack.imgur.com/wlsV4.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wlsV4.png" alt="enter image description here"></a></p>
  
  <p>When focused state title/image visible for UIButton</p>