I found a solution here
https://answers.unrealengine.com/questions/120617/how-to-change-a-global-gamma.html
It isn’t the best, but multiply your color by 1/2.2 and that roughly but not exactly fixes your problem.
I found a solution here
https://answers.unrealengine.com/questions/120617/how-to-change-a-global-gamma.html
It isn’t the best, but multiply your color by 1/2.2 and that roughly but not exactly fixes your problem.