This resource pack adds unique sprites for every single armor trim on armor viewed as an item, thanks to 1.21.5's item predicates features!

One draw back is that you can't change the trim material colors with a resource pack and have all the item's change color aswell, as each trim design in each color are all seperate files (silence on chestplate with diamond material, silence on chestplate with redstone material, etc.); if you want the item sprite to change too, will, for now, have to change every single trim sprite for the material you want to change the color of...

This resource pack should be usable in any version 1.21.5 and above, as long as they don't change anything significant about item predicates.