NERO
All Star
It is called all of the above you muppet.
Africa = continent
Sub Sahara = terrain
Black Africa = race, however everyone on the continent are black, or arab, or mixed with, as well as south africa being multicultural. Identifying with the terrain indicates those that live in the green part of the continent, which can exclude the former.
Yellow Asia?
Sub-Gobi Asia? Sub-Alpine Europe? Sub-Amazonian-South America? It works both ways.
How about just Africa?