Ethnic Units for City-States
This gives the various city-states of Civilization VI ethnically appropriate unit graphics just like the playable civilizations. For example, Kumasi and Zanzibar will produce units with African graphics, Jerusalem and Kabul will produce ones that look Middle Eastern, Hong Kong will produce Asian units, and so on.
UPDATE 2/26/17: Updates to DLC city-states (e.g. Palenque and Muscat) have been added.