Elytra customization

Elytras im Minecraft are too boring, especially after armor trims was added, ordinary blue elytras simply stand out from the general style, so I (and I believe that many other players) will love to see some customization for them.

I have some ideas like allowing to add armor trims on elytras, adding separate elytra trims, obtainable from end dimension or whole new elytra customization table with ability to dye elytra and add a trim on it