For experts with a published corpus deep enough to name. Quotes get a hairline rule and full italic display setting, inline markers and a source footer, and the book or paper is named rather than paraphrased. This is the house hue — editorial is the default, not a variant.
Fits an expert like: a named book or paper, high chunk count, and a habit of citing it. In the 2026-05-28 material audit these were the strongest sources — the expert who names The Habit Revolution in her answers is the pattern this theme is built around.