Group Darkvision: If one group member has Darkvision, everyone has it.
The current implementation darkens the screen if the selected char has no dark vision (e.g. Githyanki) and is in a cave, and so much so that you cannot play without countermeasures.
Countermeasures would be e.g.
- Selection of another char
- Usage of torches
Problem: These countermeasures reduce my gaming fun. I am no longer allowed to control my preferred (created) char for a long time or I have to laboriously change weapon / torch before and after every fight. I.e. I (PLAYER) suffer from a disadvantage that my created CHAR has.
A correct implementation would reproduce the disadvantages of the missing dark vision to my CHAR. e.g. shortened range of ranged weapons, penalties for perception throws etc. Which might be very complex. Therefore I understand that Larian leaves it at a purely cosmetic implementation of the D&D rule Darkvision.
But as long as it is purely cosmetic it is a question of taste and at least in my case a black screen only creates frustration and reduces my gaming fun. Therefore please Darkvision as an option.
Group Darkvision instead of on/off, because this option already existed in BG2 and it bends the D&D rule and doesn't break it. I (player) control a group. I (player) expect the Elf-Char in the group to let the group leader (human) know if he sees something interesting in a dark corner. Cooperation is what makes a group. And the simplest implementation of this group dynamic is a shared dark vision.