So I think you all remember when Tobirama said "I've never seen a Kagutsuchi that big before" when he saw Sasuke use it.
Kagutsuchi is the ability to control the black flames of Amaterasu.
Who do you think he's seen it from before?
Hey Azu!
When you go into preferences you'll see an option to enable or disable the holiday styling.
https://animebase.me/account/preferences
Then just switch back to the Christmas theme and the snow stuff should be gone