During his excavation of Ramses III's Royal tomb, Carl Richard Lepsius discovered a royal fresco depicting all the people known by the ancient Egyptians. And that fresco changed his perspective about the true builders and rulers of Kemet. Lepsius realized that the ancient Egyptians depicted themselves identically to the other Africans (Nubians and other Black Africans).
Meaning that they considered themselves members of that Black African family. That fresco was an official Kemetic representation of the average Egyptian according to the Egyptian government of that time. So, to them, they had a jet black skin tone and identical clothing, meaning common culture, while all non-Africans were depicted differently. It choked Lepsius because he had that modern idea of what the ancient Egyptians looked like in mind, some Mediterranean view of the original people. But there, in the middle of that untouched Royal tomb, the truth contradicted all his beliefs. All this is proven, you have the source in the post, all you have to do is look for that book and see for yourself.