Black Kushites (multi-racial Egyptians)
Changes North_African cultures (Egyptian, Garamantic, Meroitic) to be 50% "Ethiopian" ethnicity.
Now, your Kemetic restoration campaign as Kush can more accurately reflect the multi-racial society of Ancient Egypt.
Meroitic characters should really be almost all black based on the historical sources I can find, and Garamantic should be the opposite, but this is a quick fix for the whole culture group.