I made this mod about 1 month ago and I have been working on it since. Now this mod has:
Lightsabers that deal massive damage but are expensive to craft they also have dual counterparts.
Crystal ore is an ore you can now find in the caves it drops a normal crystal which is dyeable and allows you to make lightsabers.
Rainbow Diamond ore is an ore that will drop a rainbow diamond and you can use it to make new armor and tools.
Rainbow Armor is an armor that is crafted with rainbow diamonds and is just a little bit better than Netherite.
Rainbow tools are tools that are made out of rainbow diamonds and the only thing that makes them special is its better than Netherite.
Rainbow Hammer is a new tool that can mine in a 3 x 3 area.
Rainbow Log is a log that you can find in a new biome.
Rainbow Biome is a new biome that generates rainbow trees and rainbow grass.
There are also some creative-only blocks like the rainbow stone button they might be craftable in a later update.