Thanks for a fascinating link:
By “much darker skinned” what they actually mean is akin to olive-skinned Mediterranean types, rather than pale blond-haired or ginger Nordic types.
Our family’s olive skinned darker color came supposedly from a Greek female slave, who became the wife of a Brit Sea Captain, who settled in what is now N.C..
Somehow, some west African Black DNA also, got into our total DNA package @ about the same time.
Genealogy generally leads to some surprises. Having the DNA done will often leads to surprises, particularly among black supremacists. YouTube’s got firsthand testimonials of the latter. :^)