{
  "name": "chalkboard",
  "voice": "night lecture — the lower third is a worn deep-green chalk band where every word is SCRIBBLED in fast chalk (2-frame pop + scribble reveal + dust puff, seeded crooked), emphasis gets double underline dashes and the final word lands in yellow chalk; between sentences an ERASER SWIPE smears the old words off and leaves ghost smudges. At the apex the band grows into a full blackboard behind the subject and the hero word is HAND-WRITTEN 130px tall in chalk stroke by stroke (jittered nib, dust falling from the pen), finished with a hand-slap dust clap and two violent underlines, then the halo breathes.",
  "when": "education/explainers, science and lecture content, teacher channels, documentary asides, 'professor energy' brand spots. Reads as handwriting, so it suits thoughtful pacing; the deep-green board supplies its own contrast on bright scenes.",
  "register": "scholarly-warm",
  "fonts": { "body": "Caveat", "tag": "Caveat", "strokeFont": "HersheyScript1.svg" },
  "palette": {
    "body": "#f3f6ee",
    "em": "#f3d96b",
    "accent": "#fbf9ef",
    "chalk": "#fbf9ef",
    "dust": "#f6f4e9",
    "board": "#1d3328",
    "boardHi": "#22392c",
    "boardLo": "#182b22",
    "bandHi": "#23392d",
    "bandLo": "#16271f",
    "rim": "#8a6a48",
    "rimLo": "#5f452c"
  },
  "body": {
    "paradigm": "chalkrail",
    "layer": "fg",
    "fontPx": 52,
    "strip": { "w": 1200, "h": 148, "bottomPx": 0 },
    "rows": [26, 82],
    "tag": "OBSERVATORY — NIGHT LECTURE · wk 07",
    "seed": 13,
    "eraseDelay": 0.23,
    "yield": { "dim": 0.55, "pre": 0.07, "post": 0.41 }
  },
  "hero": {
    "setpiece": "chalkwrite",
    "layer": "bg",
    "params": {
      "targetWidth": 860,
      "window": 0.78,
      "coreWidth": 7,
      "haloWidth": 14,
      "halo": 0.18,
      "dustN": 8,
      "seed": 7,
      "jitterSeed": 21,
      "dim": 0.22,
      "vig": 0.35,
      "boardGap": 0.554
    }
  },
  "fx": { "chalkclap": 12, "seed": 13 },
  "plate": { "grain": 5 },
  "linkages": []
}