Alexis_64_Colors_0.2-1.16.5.jar is a release file of the Minecraft mod Chroma Color Blocks, made for Minecraft 1.16.5. It was published on October 19, 2021 and is 1 MB in size. For the full description, screenshots and every other version, visit the Chroma Color Blocks mod page.
How to install: Put the .jar into the mods folder (.minecraft/mods) and start Minecraft with the matching mod loader profile.