The third week of Advent the Church lights up the Rose candle.^1
Also, during this Gaudete, or Rejoice, Sunday we have readings that are meant to have us feel and be full of Joy. This years readings, year C, start with Zephaniah who was a "prophet of doom." However, in the reading chosen for this Sunday, Zephaniah 3:14-18 we read him saying, "Shout for Joy!" So, even a doomy guy can tell us to shout for Joy. Therefore, we should all be able to at least look for some silver lining in doomy situations. Go read Zephaniah. It's a really short read.
^1 It's not a pink candle. As one priest pointed out to me a few years ago. Men don't wear pink, liturgically it's rose.