{
 "rounds": [
  {
   "round": 1,
   "status": "measured",
   "preview": "round1/preview.png",
   "library": "/settings/stainless-steel/#r1791673218-d0363a",
   "summary": "Round 1: 72 cells (round1: rows 1-11 = colour families (best high-confidence source setting), cols = 60/75/90/100 % source power, F-/F+ = freq x0.7/x1.4 at 75 %; row 12 = exploration). Fills bi-directional, 90° angle increment per pass, LightBurn crosshatch off. 3 LightBurn file(s) burned in sequence on one fixtured card; estimated 10.6 min raw. Manual height/focus. Measured: 72 cells (72 from 4 angled phone photos = primary, flatbed scans secondary - flatbeds under-report interference blues/purples). Hank by eye: R1-0106 deep purple, R1-0904 good blue, R1-0805 deep blue at pass 2 (changed on pass 3).",
   "files": [
    {
     "label": "LightBurn file runA (.lbrn2)",
     "url": "round1/stainless_color_test_r1_runA.lbrn2"
    },
    {
     "label": "LightBurn file runB (.lbrn2)",
     "url": "round1/stainless_color_test_r1_runB.lbrn2"
    },
    {
     "label": "LightBurn file runC (.lbrn2)",
     "url": "round1/stainless_color_test_r1_runC.lbrn2"
    },
    {
     "label": "Cell key (CSV: cell → target colour → settings)",
     "url": "round1/key.csv"
    },
    {
     "label": "Cell key (PNG)",
     "url": "round1/key.png"
    },
    {
     "label": "Layout preview (PNG)",
     "url": "round1/preview.png"
    },
    {
     "label": "Burn instructions (TXT)",
     "url": "round1/BURN.txt"
    },
    {
     "label": "Scan of the burned card (metadata stripped)",
     "url": "round1/scan_round1.jpg"
    },
    {
     "label": "Measured colours per cell (CSV)",
     "url": "round1/measured.csv"
    }
   ]
  },
  {
   "round": 2,
   "status": "ready to burn",
   "preview": "round2/preview.png",
   "library": "/settings/stainless-steel/#r1791678197-c67107",
   "summary": "Round 2: 168 cells (passes/energy round: per target row: c1-4 equal energy over 1-4 passes, c5-8 +35% energy over 1-4 passes, c9-10 angle increment 45/0 deg (deep blue, blue, teal, purple, green, gold rows; else extra GN), c11-12 Gauss-Newton steps, c13-14 exploration). Fills bi-directional, 90° angle increment per pass, LightBurn crosshatch off. 6 LightBurn file(s) burned in sequence on one fixtured card; estimated 16.2 min raw. Manual height/focus.",
   "files": [
    {
     "label": "LightBurn file runA (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runA.lbrn2"
    },
    {
     "label": "LightBurn file runB (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runB.lbrn2"
    },
    {
     "label": "LightBurn file runC (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runC.lbrn2"
    },
    {
     "label": "LightBurn file runD (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runD.lbrn2"
    },
    {
     "label": "LightBurn file runE (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runE.lbrn2"
    },
    {
     "label": "LightBurn file runF (.lbrn2)",
     "url": "round2/stainless_color_test_r2_runF.lbrn2"
    },
    {
     "label": "Cell key (CSV: cell → target colour → settings)",
     "url": "round2/key.csv"
    },
    {
     "label": "Cell key (PNG)",
     "url": "round2/key.png"
    },
    {
     "label": "Layout preview (PNG)",
     "url": "round2/preview.png"
    },
    {
     "label": "Burn instructions (TXT)",
     "url": "round2/BURN.txt"
    }
   ]
  }
 ]
}