this is in 21w41a without fabric and tweakeroo ^

and this is normal 1.17.1 with fabric and tweakeroo ^

Check the vanilla brightness setting. That's the value that the gamma override tweak changes. Other than that, without the mod installed it can't be the mod's fault if the game is too bright.

after a few tries and multiple restarts its fixed.

Check the vanilla brightness setting. That's the value that the gamma override tweak changes. Other than that, without the mod installed it can't be the mod's fault if the game is too bright.

yes that might be it. thank you