I feel like the fairly recent tendency of fanartists giving Arya and Jon (and by extension, Ned) darker colored skin is to make the continent of Westeros seem more diverse? It also ties in with the decent amount of takes I've seen where people insist that the Starks are “indigenous-coded”, which considering how their ancestors committed genocide against the Children of the Forest makes these takes interesting...ly awkward. Then there’s the segment of people who just straight up pretend like the Starks/Northerners were never really white at all, and are Central Asian or something and George didn’t realize this as he was writing lol
And I don’t think racebending as a form of transformative fandom is a bad thing, but in the case of Arya vs her siblings it does get uncomfortable once you dig even one millimeter deeper into it because part of the reason Arya feels so alienated by the women in her household is because she’s told she’s ugly and not acting like a proper girl by their standards.
So a brown, supposedly “indigenous-coded” Arya who shares the typical looks and interests that are more accepted by an “indigenous-coded” North is considered ugly and unruly by her white, Southron mother. The same mother will then sing endless praise about the beauty of her docile, light-skinned, light-haired, blue-eyed, “delicately featured” daughter Sansa....and this fandom can’t connect the two dots together to figure out why this is not good.
It’s already a bad reflection of Catelyn in canon where they’re all white, and it’s ten times worse when you try to slap on a “the Starks and the First Men were actually brown” angle. It might be interesting if this fandom ever tried to properly analyze the racial aspect of having the “Stark look” be brown, including things like colorism within a mixed Northern/Southron family and the inherent vilification of darker people but they don’t. They just dip white characters in brown paint, pretend like the character dynamics and their implications would be the exact same, then pat themselves on the back for their efforts in diversity. It’s tiring to say the least.