St Catherine of Siena’s appellation, which observantia says should apply to any Pope, was easily granted to John Paul II, whose blessing even then we held to be “the blessing of a saint.”

Pope

Pope John Paul II blesses Joseph in utero, at the Apostolic Palace in Rome, at the turn of the millennium.

(That’s not an aureole showing miraculously around the pontiff.  It’s the reflection of the glass covering the photo — as I couldn’t scan it or find a scanned copy!)