{
  "piece": "Proof1 — the lit chamber",
  "source": "REFINED_Backlit7 merge (mirror event, uniform-lace)",
  "seed": "MESON-5113#03",
  "bubbleOpacity": 0.5,
  "art": {
    "w": 1001,
    "h": 1620,
    "ratio": "phi (golden portrait)"
  },
  "sheet": {
    "w_mm": 330,
    "h_mm": 420,
    "note": "A3 — golden art square floated, clear margins = lit void"
  },
  "gaps_mm": "plane z is nominal; two scales: ~3mm within a sheet, ~9mm between",
  "planes": [
    {
      "id": "sun",
      "file": "plane-1-sun.svg",
      "z": 0,
      "blur": 1.4,
      "dim": 0.95,
      "white": "none",
      "glow": 1
    },
    {
      "id": "sea-far",
      "file": "plane-2-sea-far.svg",
      "z": 9,
      "blur": 0.9,
      "dim": 1,
      "white": "none",
      "glow": 0.7
    },
    {
      "id": "sea-mid",
      "file": "plane-3-sea-mid.svg",
      "z": 15,
      "blur": 0.5,
      "dim": 1,
      "white": "trace",
      "glow": 0.7
    },
    {
      "id": "sea-near",
      "file": "plane-4-sea-near.svg",
      "z": 18,
      "blur": 0.2,
      "dim": 1,
      "white": "trace",
      "glow": 0.7
    },
    {
      "id": "event-halo",
      "file": "plane-5-event-halo.svg",
      "z": 27,
      "blur": 2.4,
      "dim": 0.85,
      "white": "none",
      "glow": 0.9
    },
    {
      "id": "event-core",
      "file": "plane-6-event-core.svg",
      "z": 30,
      "blur": 0,
      "dim": 1,
      "white": "under",
      "glow": 0.5
    },
    {
      "id": "front-glass",
      "file": "plane-7-front-glass.svg",
      "z": 30,
      "blur": 0,
      "dim": 1,
      "white": "none",
      "glow": 0,
      "blend": "multiply"
    }
  ]
}