I just recently got back into playing Minecraft, and decided to turn on subtitles to see if it would make mining any easier, and it sure did! The second I turned them on, it showed a bat and lava to the left, allowing me to find a cave almost instantly. I figured I would post this just in case anyone wants to have a bit of an easier time with mining. 😛

Exactly like we can change the color of Shulker boxes. The sea lantern is really cool but it doesn't always fit in a building because of that color.

It's said the best answer is the simplest one. So here is my suggestion to end the massive controversy around this much-loved bug, while also adding in some very cool new mechanics.
Give firework rockets a cooldown of around 2 seconds, and allow them to be right-clicked while flying with the Elytra, to be consumed and provide a speed boost.
The cooldown should be enough to prevent the player from taking off from flat ground (which, to be honest, is a bit overpowered), but still allows firework rockets to sustain long-distance flight.
Firework rockets are the perfect item for this purpose, because they are easy to mass – produce (with or without massive mega-farms), and they would allow you to leave a particle trail behind you, customizable by customizing the rocket, of course.
Also, using firework rockets to boost flight is much, much more intuitive than shooting yourself with a bow.

This also allows me to suggest a cool new mechanic that would previously have been violently rejected – the ability to shoot flying players down. Hitting a player with an arrow would close the Elytra and cancel all forward momentum, giving ground-bound players a chance to killing their flying friends.