The Nether fortresses that generate in the Crimson Forest biome are made of Red Nether Brick, and those that generate in the Warped Forest biome are made of Blue Nether Brick.
Add the Elder Prismarine to get it. Cook a block of Prismarine; it will have the same variants as the Prismarine, but with the color of the Elder Guardian.
Update certain biomes. I understand that Violet Moon doesn't want to add new biomes because it would break the seeds, but it can update the biomes, for example, by adding mycelium roots to the mushroom biome. When you use bone meal on mycelium, it makes mycelium roots and mushrooms appear.
Add the wither bones, these drop on the wither skeleton, we can make wither bone powder and the wither bone powder would be used to craft black dye and weedkiller, that is to say that if we use the wither bone powder on grass and flowers it kills them, if we use the wither bone powder on a tree shoot it transforms it into dead bush and if we use it on crops the first time it stops the growth and the second time it kills the crops, if we use the wither bone powder on nylium it transforms it into netherrack and if we use it on a grass block it transforms it into sterile earth and the wither bones could be used to make wither potions
Sorry I have to use Google Translate again but don't hesitate to tell me what you think of my ideas I will read you via the option to translate the site