Traits

A halo made of diamonds.
(Must look gem-like.)

gives your xyn a glitched particle halo!

your xyn's halo is replaced by a halo of clovers!

Gives your xyn a halo of eyes! Creepy!

Gives your a halo that resembles a constellation!
Can be any shape/colour, can use stars or dots in the constellation.

Allows your xyn to have a hat halo of any style!

Allows your xyn to have a halo resembling a small trinket of some kind! (Key, dice, figurine, etc.)

Your xyn has a halo of sparkles!

Gives your xyn a halo of smoke!

Your xyn has a halo that's made of a shooting star!

Gives your xyn a halo made of floating flowers and gems like an aitielkh floating flowercrown trait.

Examples here.