Says USA Today:

18. FLYERS: The only team in the league that gets to use Halloween colors does a pretty good job with them.

It makes perfect sense to have three sets of sweaters – orange at home, white on the road and black alternates – and it looks pretty cool. (Editor’s note: Orange puck and “P” for Philadelphia.)

https://www.usatoday.com/story/sports/nhl/2020/05/21/nhl-jersey-power-rankings-original-six-teams-tough-beat/5236708002/