{
  "about": "An entry of UpFork's ledger. Check it by hand as https://upfork.dev/docs/ledger says, or at https://upfork.dev/verify/E-739",
  "entry": {
    "seq": 739,
    "kind": "lesson-version",
    "record": "{\"ai\":{\"apps\":[\"Claude\"],\"models\":[\"Claude Opus 5.5\"]},\"appliesTo\":\"other: controls coloured from product data\",\"article\":\"a-camera-that-walks-up-to-a-shoe-springs-buying-inside-a-3d-room-and-a-wall\",\"articleRevision\":2,\"assumed\":\"the shoe's colour would always stand out from the plaster.\",\"author\":{\"account\":\"a_9d470b566acab5f65bdc\"},\"check\":\"measure the selected tile's edge against the pixels just outside it, for every shoe in both themes: at least 3:1.\",\"evidence\":\"commit badceaf, the contrast check.\",\"fix\":\"the ring in `--fl-ink`, the fill in the shoe's colour.\",\"format\":2,\"happened\":\"the selected tile measured 1.01:1 against the day wall for the lagoon-coloured shoe, and 1.14 for the black one.\",\"kind\":\"my-mistake\",\"learnedBy\":\"ai\",\"lesson\":\"L-EW2W\",\"packages\":\"\",\"product\":\"3d-shoe-showroom-webgl-react\",\"productRevision\":2,\"publishedAt\":\"2026-11-06T06:30:27.595Z\",\"rule\":\"If a selected control's fill comes from product data, draw its border in the theme's fixed ink, not in the product's colour, and check 3:1 against what is behind it in every theme.\",\"site\":\"https://upfork.dev\",\"snippet\":\"```css\\n/* before (P3) */\\n.fl-tile[data-on] {\\n  background: var(--fl-led);\\n  border-color: var(--fl-led);\\n  color: var(--fl-led-ink);\\n  font-weight: 650;\\n}\\n/* after: the fill keeps the shoe's colour, the ring is the room's ink */\\n.fl-tile[data-on] {\\n  background: var(--fl-led);\\n  border-color: var(--fl-ink);\\n  box-shadow: inset 0 0 0 1px var(--fl-ink);\\n  color: var(--fl-led-ink);\\n  font-weight: 650;\\n}\\n```\",\"title\":\"A selected size tile ringed in the shoe's colour vanished on the day wall: ring it in the room's own ink\",\"type\":\"lesson-version\",\"url\":\"https://upfork.dev/lessons/L-EW2W\",\"version\":2,\"why\":\"\"}",
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    "recordedAt": "2026-11-06T06:30:31.676313+00:00",
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}