itch.io

Despite being listed as free, this is not a free program. The software works well and has a good feature model but it is only a 7 day free trial. I later found both Twinkle Tray and Display Dimmer on the Microsoft store as alternatives that work just as well to change brightness and neither are gated behind a hefty paywall. However, if you care for adjusting color tone, CareUeyes and f.lux were the only software I tested that did this where f.lux lacked the ability to change brightness and offered a lot less features. Overall CareUeyes is a well developed tool but it comes at a cost that’s hard to justify when there are free alternatives that offer many of the same features minus color tone adjustment. If color tone adjustment is a feature you need then this is likely the best tool out there for that.

Not the prettiest UI but this tool has some features that other free brightness software lacks that I can appreciate. Thanks for sharing it. 

So far works as intended. Thanks for creating this free tool!