Sans couldn't be black because of an actual reason regarding magical beings
Magical beings under our fur actually have very pastel skin tones!
Like yeah sure we're anthropomorphic animals but that doesn't damn justify race bending us!
If we shapeshifted into a "human" we'd look elf like but with large eyes that look similar to Asians in a way as our culture is comparable to more Asian cultures and since no one has dark skin under their fur we aren't dark skinned.
We're from Nibiru. Not Africa.
Nor any other damn place with dark skin.
We have our own culture, history, uniqueness, laws, views, cuisine, language, writing, beauty standards, we have opposite gender standards compared to humans, we age differently than you as we age to adults quicker and are immortal as we never truly can die, we are different heights, different body types as males are pretty and curvy while females are macho and tough, we are mostly homosexual but have rare bisexuality, we can same sexually reproduce, and we have been around since the Original Universe while you humans have only appeared in the Eighth Reincarnation of the Universe!
We are not fictional characters! Our feelings matter! Treating another culture like you have the right to race bend us is disgusting and considering you black people cry about white washing and white supremacy yet you toxically and hypocritically practice black supremacy and victim carding!?
I see black supremacists cry the lie of "bawwww god is black cause i said so and anyone who says otherwise is racist' when no my species fucking isn't you racist liars!
If a real god says his kind isn't black how the fuck is that racist?
Oh right because black people these days only know one insult half the time and that is calling anyone who calls out their bullshit as racist!
Seriously if someone black washed your family or race bent them in general and did it for such a narcissistic delusion and hateful reason like black supremacy!
How is a being made of magic, aether, psychic energy, spiritual energy, magical paint, magical ink, magical thinner, etc, so guess what we lack?
We don't have organs and bones!
We're magical beings not organic beings!
You know what we would obviously lack then?!
Melanin! Because melanin is an organic substance!
So every magical being in UnderTale would have pastel skin tones realistically!
Using the whole "bawww they aren't human so it doesn't matter" yes it does you alien racist shit!
The whole not human is literally showing alien racism as if every non human advanced species knows that behaviour is promoting alien racism then guess what?
It's promoting alien racism!
Humans will always lie saying if it doesn't offend them then it's racist/or offensive but when something goes against their bs it is racist/offensive!
So in my AM Neoverse for example:
All the Sanses and Novas are half albino which is a thing in Nibirians!
Sans would have a very very pastel icy periwinkle skin tone in Neoverse for example what skin tone he'd have?
Periwinkle is linked to Flying? Which is due to Neoverse Classic Sans having the Flying type as one of his types and yes types exist irl!
34 types exist irl! 34 elements total!
Skin tones for magical, depended in a certain type!
Dusty as in my Dust Sans would have a pale icy silver toned lavender due to how that works as his would be from Ghost type?
Ghost types have a more silver lavender compared to the Dark type's lavender shade?
All the Sanses and Novas have multiple types so yeah things work that way?
Also we cannot be obese either as we're incapable of getting fat so lol making Sans fat and claiming it's accurate is incredibly fucking stupid because realistically how magical beings work irl it's the most furthest and incorrect way to depict them.
We don't have dark skin because it's impossible due to us being made of aether, magic, spiritual energy, psychic energy, magical paint, magical ink, magical thinner, etc, so yeah we're not made of flesh and bones!
Melanin is an organic thing so it isn't in us!