title: Xcode added Default-568@2x.png
body: <p>About a week ago xcode showed me some error and when I clicked to solve the problem, xcode added this picture:
  <a href="https://i.stack.imgur.com/Bsd7T.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Bsd7T.png" alt="enter image description here"></a></p>
  
  <p>My questions are: What is it good for? Why do I need it?
  Thank you. </p>