Zenith's LUT Shader (OptiFine/Iris) is a beta file of the Minecraft shader Zenith's LUT Shader, made for Minecraft 1.17.1, 1.9.1, 1.16.3, 1.13.1, 1.9.3, 1.19.3, 1.20.2, 1.16.1, 1.18.1, 1.20.5, 1.9.4, 1.9.2 and more. It was published on June 8, 2024 and is 29.5 MB in size. Pre-release builds can contain bugs — back up your world before installing. For the full description, screenshots and every other version, visit the Zenith's LUT Shader shader page.
How to install: Put the .zip into .minecraft/shaderpacks (do not extract it) and select it under Options → Video Settings → Shader Packs. Needs Iris or OptiFine.