Space Marine 2 is a game set in a grim, dark future, and this aesthetic is reflected in the lighting and color scheme. While the default lighting in the world of Warhammer 40K is meant to be ominous, many are not impressed by the dark gray or washed-out colors and want to adjust the settings to make it look even more stunning. Here are the best brightness settings in Space Marine 2 that you can use to improve the look and feel of the graphics. And yes, you can make these changes even after you've started the game.
Best Brightness Settings for Warhammer 40K Space Marine 2
Here's a community recommendation that you can try for brighter and more vibrant visuals in WH40K Space Marine 2.
So if you want to change the amount of darkness or gray in the game's colors, the first slider change should help with that. Since Raytracing/HDR is not supported, you will see limited contrast, reduced color gamut, and standard dynamic range, but you can try the setting mentioned above to see improved visual quality.
Please note that RTX HDR works with Space Marine 2 and can significantly improve image quality.