I have recently discovered this has been asked and talked about in the paste (but i dont know if a good reason was given).
The Halloween event lighting is only available during the event that last around 1 week which is really a shame and a problem from my point of view this is just too much content to only be available once pr year for 1 week. I can understand wanting this event to fell special and worth the players time but the rewards and challenges and of course the Pumpkins are reason enough to play it i think.
If Fatshark wanted this lighting to be apart of Geheimnisnacht then why not just make it the only lighting u could get during the event and leave it at that i mean hell make a small, quick map like quiet drink to only be available during the event.
I just fell that for such an amazing experience that spooky lighting brings for it only be available for such a short period of time once a year is a shame and a waste.