title: Facebook graph API: ID of user profile picture
body: <p>Is there a way to get the ID of the picture that is the current profile picture for a user?</p>
  
  <p>Edit: OK, seems there is no trivial way to get the ID!</p>
  
  <p>However, it appears from random testing that every user has a single album with attribute <code>type="profile"</code>, and the first image in this album is always the profile picture, so it is possible to get the ID of the profile picture that way. Can some more experienced with Facebook confirm that this is indeed always the case?</p>