title: Possible with launch storyboard?
body: <p>The height of the upper toolbar of my photo app varies from one screen size to another...</p>
  
  <ul>
  <li>On 4" screens, the height is 40 points</li>
  <li>On 4.7" and 5.5", it's 30% of the screen height</li>
  <li>On other screens, it's 77 points</li>
  </ul>
  
  <p>Considering those specifications, would it be possible to use a launch storyboard?</p>