I took the cauldron's color palette and applied it across the board to all iron related items, blocks, and entities.
Description
As the name states, iron is now dark, deriving the same color palette across the board as the cauldron and hopper. This resource pack supports Dramatic Doors and Simple Weapons for Better Combat, turning the iron weapons and doors dark as well.
https://www.curseforge.com/minecraft/mc-mods/dramatic-doors
https://www.curseforge.com/minecraft/mc-mods/simple-weapons-for-better-combat
For 1.20.1. there is no intention for me to port it to other versions of the game.
I have also released this mod on Modrinth as Vile's Dark Iron. I recommend using my resource pack Scrappy Armors on top of this. Linked below.
Scrappy Armors - Minecraft Resource Packs - CurseForge