Designing User Experience Overview Visual design decides what an interface looks like when everything goes right. UX decides what happens the rest of the time — and the rest of the time is most of the time. Core principle: Design the states, not the screens. A "screen" is one state of a component; shipping only that one is why generated UI looks finished and breaks on contact with real data. Companion skills: for visual craft, for access, to audit a finished UI. The Iron Law A list that only renders when it has items is not a list component — it is a demo. If the design has no answer for "wha…