I take your the daynes are not white and raise you: the targaryens are canonically more dornish than valyrian
They are, but they are always presented as white and are most certainly do not adhere to Dornish customs or culture, to the point that Aerys is a raging racist, evenāno, especiallyāto his own granddaughter.
While geneticallyĀ Mariahās descendants have a significant percentage of Dornish blood (IIRC itās almost 40%), I am positive GRRM never intended for them to be representative, itās just happenstance. After all, Mariah is almost never mentioned, and Dyanna Dayne has one single mentionāwhich is in the Dunk and Egg books to say sheās dead. Sheās not even namedĀ except in the family tree.
So, while I do think itās telling that fandom conveniently ignores/downplays/vilifies the Dornishwomen who married into the Targs, especially in fancasts (I can count on one hand how many times Iāve seen Maekar, Aegon V, etc. accurately given POC fancasts), I donāt think itās incorrect to portray the present Targs as white. If nothing else than because the novels do exactly that and never shy away from pointing out when someone is nonwhite.
