title: iOS Launch Screen for app with different themes?
body: <p>I would like to create a launch screen(s) for my app which gives user an option to choose a theme (black or white).</p>
  
  <p>What is the best approach to create a launch screen when I don't know what theme will be used at start-up?</p>
  
  <p>Any advice will be highly appreciated.</p>
  
  <p>Thanks!</p>