Comment by zdragnar

The last time I heard this from a designer, the designs we got constantly violated the UI framework in ways that required deep customization.

I'd love to have a designer that started with a style guide and then actually stuck with it. Writing CSS isn't hard, and sticking with a known set of rules makes it even easier. But then this one component needs a slightly different font size that doesn't match up to any of the established typography rules, and this other spot needs unique padding, and and and I end up having to waste so much time looking for these little surprises.