{
  "piece": "Proof3 — the lit chamber (equal-count shells, ring-pop)",
  "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-01-sun.svg",
      "z": 0,
      "blur": 1.4,
      "dim": 1,
      "white": "none",
      "glow": 1
    },
    {
      "id": "glow",
      "file": "plane-02-glow.svg",
      "z": 5,
      "blur": 2.6,
      "dim": 0.85,
      "white": "none",
      "glow": 0.9
    },
    {
      "id": "wave1",
      "file": "plane-03-wave1.svg",
      "z": 10,
      "blur": 0.9,
      "dim": 0.7,
      "white": "none",
      "glow": 0.8
    },
    {
      "id": "p1",
      "file": "plane-04-p1.svg",
      "z": 14,
      "blur": 0.8,
      "dim": 1,
      "white": "none",
      "glow": 0.8
    },
    {
      "id": "wave2",
      "file": "plane-05-wave2.svg",
      "z": 18,
      "blur": 0.5,
      "dim": 0.7,
      "white": "trace",
      "glow": 0.7
    },
    {
      "id": "p2",
      "file": "plane-06-p2.svg",
      "z": 22,
      "blur": 0.7,
      "dim": 1,
      "white": "none",
      "glow": 0.7
    },
    {
      "id": "wave3",
      "file": "plane-07-wave3.svg",
      "z": 26,
      "blur": 0.2,
      "dim": 0.7,
      "white": "trace",
      "glow": 0.7
    },
    {
      "id": "p3",
      "file": "plane-08-p3.svg",
      "z": 30,
      "blur": 0.55,
      "dim": 1,
      "white": "trace",
      "glow": 0.6
    },
    {
      "id": "p4",
      "file": "plane-09-p4.svg",
      "z": 34,
      "blur": 0.45,
      "dim": 1,
      "white": "trace",
      "glow": 0.5
    },
    {
      "id": "p5",
      "file": "plane-10-p5.svg",
      "z": 38,
      "blur": 0.35,
      "dim": 1,
      "white": "trace",
      "glow": 0.4
    },
    {
      "id": "p6",
      "file": "plane-11-p6.svg",
      "z": 42,
      "blur": 0.2,
      "dim": 1,
      "white": "under",
      "glow": 0.35
    },
    {
      "id": "p7",
      "file": "plane-12-p7.svg",
      "z": 46,
      "blur": 0,
      "dim": 1,
      "white": "under",
      "glow": 0.3
    },
    {
      "id": "film-grain",
      "file": "plane-13-film-grain.svg",
      "z": 46,
      "blur": 0,
      "dim": 1,
      "white": "none",
      "glow": 0,
      "blend": "multiply"
    }
  ]
}