I'm not sure they're uncorrelated, visual design is also about logic and consequences of structure. In essence, it should be deduced from the end result, for e

I'm not sure they're uncorrelated, visual design is also about logic and consequences of structure. In essence, it should be deduced from the end result, for example "the user wants to do X, so what does he need to do it, and what's the most efficient way to present it", similar to how you'd think about designing an API that other developers will use.