colonialism didn't have much impact on horners in that regard. Most phenotype's looked down upon was already considered undesirable in the region. Dark skin is usually associated with certain features that are considered undesirable which I think is a contributing factor. But I have seen people gas up the most basic looking light skin over a dark skin girl with almost identical features beside skin color.For some reason this reminded me of Frantz Fanon book 'black skin, white masks'
Colonialism had a big effect on what we deem as desirable.