HereticFX for STLM is a mod that improves the visuals of The Witcher 3: Wild Hunt. It was made using the ReshadeFX suite, a powerful tool that can improve the look of a game without affecting its performance. This tool was used to make a preset that can be applied to any game.

After creating the preset, it was tested on several games, and the results were quite good. In particular, it worked well on The Witcher 3: Wild Hunt, and it improved the game's visuals without losing its performance. 

This mod was created by a fan of The Witcher 3: Wild Hunt. If you like the game, you can download it and use it for yourself.