When I tried adding an edited image of horse with red eyes, it did not appear. Even though I had renamed it (horse_black1).
When the original horse, (horse_black) was deleted and replaced by the edited, it worked fine. The problem with this was that no normal black horse could appear. Does Anyone know how you can have both types of horses without losing any variant, just adding a new one?
Minecraft – How to add a new horse type
minecraft-java-edition
Best Answer
You can't add a new horse type without modding the game, you can just edit it using resource packs (like you did).