When you have an elytra on and you have the glowing effect, the elytra outline will always be black, even if you have a different team color.
Environment
Wear an elytra and have the glowing effect
When you have an elytra on and you have the glowing effect, the elytra outline will always be black, even if you have a different team color.
Wear an elytra and have the glowing effect
Can confirm: