Game is slightly darker than in 1.16

Can't confirm, see screenshots. What are your system specs?

I can definately confirm

Lenovo Thinkpad L560

Intel UHD 520

Pls download images and switch between in windows 7 photo viewer(it switches instantly). Dont know for win 10.

I can see it in your screenshots too.

Maybe this is related to MC-225088

I uploaded gif with your screenshots.

Hm, yeah there's a slight difference, but this

Brightness control has almost no effect after 1.17.

Before 1.17 game was brighter on 50% then what it is now on 100%.

is not true.

I see that now, but I was eyeballing it before we made comparisons. I was not off by that much.