It comes in handy on large multi-brand enterprise sites where the same styles serve multiple domains. They are sharing layout but not necessarily the colors, di

It comes in handy on large multi-brand enterprise sites where the same styles serve multiple domains. They are sharing layout but not necessarily the colors, dimensions, typography, iconography, or shape language. It makes sense to systemically separate concerns in an environment like that, because it makes the same developers able to efficiently work on any of the sites; developers meaning one or more in-house teams, possibly with external consultants.