You know about the horrid vestments the Holy Father wore at Mariazell in Austria.
I have a bit of news.
Apparently, the Austrians wanted the Holy Father to wear Baroque vestments.
They were overidden by His Excellency the current Master of Pontifical Ceremonies, Most Rev. Piero Marini.
UPDATE: Someone sent me the following, which I duly pass along.
Because you are clearly someone interested in factual
accuracy, I am presuming to send you this email. Please note that according
to a story published on September 7 in Der Standard/Panorama, the Mariazell
vestments were commissioned by the Austrian bishops. Subject to the
approval of the Vatican to be sure, but the initial choice does not seem to
have been made by Archbishop Marini.