Apply consistent color, typography, and spacing so an artifact looks designed, not defaulted. Trigger when the user asks to "make it look good/on-brand", "pick colors", "choose fonts", "set up design tokens", "style this page/report/slide", or hands you a brand to match. Covers building a small token set, an accessible color palette, a readable type scale, and a spacing rhythm — then using tokens instead of scattered magic values.
