Badges update automatically and link to the resource pack page on MineUniverse.
I've seen a lot of amazing elytra textures online. So I thought: "why not add them as an add-on!?" So here we are, using Optifine's CIT option. After renaming your item into one of the names I specified for them, your elytra texture will change in the respective texture. And yet; others who use the resource pack can see the alternative designs too! This means that you can use the new spruced up elytra textures on your favorite server too!