title: effective UI styling for iOS app
body: <p>My question is a simple one. In android, we can separate xml stylesheet from layout so that it can be reuse everywhere and edited easily for UI design change.</p>
  
  <p>Is it also possible in iOS xcode? if can how (prefer if not from controller)? need libraries? what are good libraries for that? </p>
  
  <p>Thank you for your answer.</p>