{
  "phi": 1.618033988749895,
  "upm": 1000,
  "capHeight": 900,
  "xHeight": 556,
  "ascent": 1020,
  "descent": -260,
  "stroke": 140,
  "radius": 70.0,
  "penAngleDeg": 31.72,
  "notes": "Rule-based extension of the sketch: rounded strokes + golden-ratio proportions for screen/print."
}