I actually agree that the darkness filter is too dark, and I feel that way about it on Wendigo Point as well. I tried using the colorblind mode and while it did help with visibility in the sewers, it didn't help with visibility in Wendigo Point at all. While I'm not saying your claim is false, I do believe anyone will see better in the sewers with the filter on because it changes a dark green into a dull yellow; therefore, the area becomes easier to see for everyone because the color of the sewers is just brighter in comparison. Please note that I'm not saying that Wendigo Point also needs to be brighter since it's purely optional, but I still would appreciate an option for it(or both, if you also want the intended experience for the sewers to be for them to remain as dark as they are but still provide the opportunity to the player to decide their own experience.)