I personally prefer the appearance to be adjustable, since vampires in lore can be a bit more variable eye color wise..? There's different depictions that aren't simply limited to red eyes and paler skin- and of course, if the character has a darker skin tone by default it could be weird to make it paler unless they already were a light tone to begin with.
That would suggest that for every skin tone in the game, the dev coders would have to set a pale variant to that skin tone- If you select all skin tones during character creation, there's two tones called vampire 1 and vampire 2 if I remember. So giving the option for the player to be able to adjust the appearance themselves would be preferred and not taking that away.
Then there's also characters with heterochromia- would they just lose their two different eye colors entirely? Or would they become two different shades of red? If there's a default vampire eye color for all vampires I just don't see how this would work without upsetting people or having to hardcode a lot of colors just for a little thing here in act 3.
Maybe a suggestion for the character creator to simply have teeth options, since other races may have different teeth and grow extra fangs upon becoming a vampire spawn. (Like half orc of tiefling)
