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Polar Days, Polar Nights

A simple mod that makes it perma-night on the coldest day of winter, and perma-day on the hottest day of summer.

(You can also adjust your day settings, in the world settings, on top of this mod, for example setting day to long day, with the two effects stacking.)

UPDATE NOTES
- Added options for attenuated arrangements where the height of summer and winter will be half dusk and half day or night.
- Note that this mod was originally conceived with the Moonlight Mod: https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3502413407