Hi there!
Awesome project, just in time for the season ;-)
I noticed the program terminates when locking the screen ( ⊞ + L ) or when it locks automatically. Upon resume the icon of the program remains in the tray, while hovering over it makes it disappear which is typical (bugged) Windows behaviour, yet indicates a non graceful exit.
So I wonder if this is something that can be solved without much effort.
Btw the accumulating snow is really well done!!
Cheers