I was thinking if there is some possibility to change whole skin depending on the season automatically. If that can be done, people don't have to change everything alone. If it's possible, yes? Or no? If it is, would it be could?

I believe this would be possible by the use of code such as Javascript and a responsive type theme with Forumotion so it could be done! We currently provide coded ornaments and decorations when the holidays are around as well.

But yes, it could be done but it would just take time.