The Advent wreath in the papal library has been purged of all blue contribution. Four red candles, as German tradition dictates.
German reporter Kirsten Englisch:
Using four red candles is the most traditional way. But, really, it is like decorating a tree, you can do what you want. But green and red are the Christmas colors and 80 percent of Germans would have an Adventskranz with four red candles in their house.