Like it used to be You as black text and then Tube in the red play button shaped thing. But now it's the playbutton and then YouTube. Also, the shade of red they're using now is much brighter. I know some people mentioned a YouTube update a while ago but I'm not sure if this is the same thing. The logo and shade of red were literally the only really notable changes (as far as I've noticed). Also, I'm talking about the PC version.
(Also, completely unrelated but I have to admit that I haven't even started editing episode 17 of Tomodachi Life at all. I did film the footage, though. And the episode is most likely going to be shorter due to me also filming some clips for another video... which I'm trying to get finished by the end of this week.)