[callil]

It's akin to refactoring code for designers. You do it so that there is more clarity and consistency in a visual system that is complex.

In addition to helping implement the brand in the short term across teams and products, a redesign like this also gives the brand a clear foundation on which to grow and evolve, instead of being fragmented.

A huge part of being a designer in a large company comes down to figuring out how to design systems. The impact of adjusting 4px probably did occur in 10 min in a design program. But the conversations and thought that went into the overall system took far far longer and required a huge amount of knowledge of how systems like this are used and implemented.