Why do solution 9 NPCs get more character creation options? (Raid quest spoilers)

[AnimaAnimus]

You're very cool.

Not being edgy. I just have sensory issues and the bright neon messes with me so I am opting not to do it.

And my dude 1/10 on the troll. I hope you have fun in middle school this year!

[Iscah]

This IS new as these aren't custom NPCs, but rather utilizing the character creation system. Check Garland tools, none of them are unique models with unique features.

https://garlandtools.org/db/#npc/1049789

"Yaana: Face (custom) #8..."

This is presumably the source of the glowing pupils.

The super-bright hair doesn't require custom faces, because instead it seems that the devs have access to several more rows of hair colours that players can't see. (In the profile linked above, note that her highlights colour is "row 26" when we only have 24.) This is nothing new – the devs have been using it since ARR or probably even 1.0 to assign skin colours not naturally available to a character, particularly for Roegadyn, like Moenbryda's more human colour and Curious Gorge being a Sea Wolf recoloured to look like a Hellsguard.