{
  "probe": "lab:D6 诊断 · light 侧 precision 为什么低",
  "generatedAt": "2026-09-02T09:04:05.225Z",
  "inputs": {
    "groundTruth": "ground-truth-W.json",
    "surfacePin": {
      "DtZcMkhNy6qh6jbQQnhreQ": {
        "label": "Micro-Apps-20250923",
        "version": "2386732632827891307",
        "lastModified": "2026-08-12T07:09:47Z"
      },
      "rJJjWWs51n2iFOlCIC7aYG": {
        "label": "Config-T",
        "version": "2392721135254754987",
        "lastModified": "2026-08-28T10:28:50Z"
      },
      "0054ib0nLmt27bC3QlGDl7": {
        "label": "LCD",
        "version": "2394096213066862534",
        "lastModified": "2026-09-01T03:54:20Z"
      },
      "tmVCFjx1BCfb7EP5OPD1AP": {
        "label": "PP-2025-2026",
        "version": "2391117033705822315",
        "lastModified": "2026-08-24T03:21:25Z"
      },
      "BvqvqRXPEBlWFbl1jOC6mh": {
        "label": "MH-2026",
        "version": "2394456942532330031",
        "lastModified": "2026-09-02T02:57:14Z"
      },
      "HvU7TXVvJGQ8AoS9Z1Jd10": {
        "label": "Media Service UR",
        "version": "2385995199832356872",
        "lastModified": "2026-08-10T07:21:22Z"
      }
    }
  },
  "n": 2253,
  "boundaries": [
    "「纯白」= 三通道精确等于 1，⛔ 不近似",
    "只看 frame 自身 fills[0]，⛔ 不看子图层",
    "「#FFFFFF 是 Figma 新建 frame 的默认填充」是机制解释，⛔ 本文件未直接实测"
  ],
  "truthDistribution": {
    "light": 138,
    "dark": 1967,
    "unknown": 148
  },
  "perState": {
    "light": {
      "bucket": 409,
      "hit": 137,
      "precision": 0.33496332518337407,
      "recall": 0.9927536231884058,
      "baseRate": 0.06125166444740346,
      "lift": 5.468640374189434
    },
    "dark": {
      "bucket": 1728,
      "hit": 1711,
      "precision": 0.9901620370370371,
      "recall": 0.8698525673614642,
      "baseRate": 0.873058144695961,
      "lift": 1.1341306911257978
    },
    "unknown": {
      "bucket": 116,
      "hit": 35,
      "precision": 0.3017241379310345,
      "recall": 0.23648648648648649,
      "baseRate": 0.06569019085663559,
      "lift": 4.593138397017707
    }
  },
  "constantDarkPredictorPrecision": 0.873058144695961,
  "lightBucketByColor": {
    "#ffffff": {
      "n": 380,
      "light": 109,
      "dark": 175,
      "unknown": 96,
      "exactWhite": true,
      "precision": 0.2868421052631579
    },
    "#f7fff5": {
      "n": 17,
      "light": 17,
      "dark": 0,
      "unknown": 0,
      "exactWhite": false,
      "precision": 1
    },
    "#e1eefd": {
      "n": 5,
      "light": 5,
      "dark": 0,
      "unknown": 0,
      "exactWhite": false,
      "precision": 1
    },
    "#f6f6f6": {
      "n": 3,
      "light": 3,
      "dark": 0,
      "unknown": 0,
      "exactWhite": false,
      "precision": 1
    },
    "#f8f8f8": {
      "n": 2,
      "light": 1,
      "dark": 0,
      "unknown": 1,
      "exactWhite": false,
      "precision": 0.5
    },
    "#fbf4ea": {
      "n": 1,
      "light": 1,
      "dark": 0,
      "unknown": 0,
      "exactWhite": false,
      "precision": 1
    },
    "#d9d9d9": {
      "n": 1,
      "light": 1,
      "dark": 0,
      "unknown": 0,
      "exactWhite": false,
      "precision": 1
    }
  },
  "exactWhite": {
    "inLightBucket": 380,
    "anywhereInFace": 380,
    "shareOfFace": 0.16866400355082112,
    "bound": {
      "n": 4,
      "light": 4,
      "dark": 0,
      "unknown": 0,
      "precision": 1
    },
    "unbound": {
      "n": 376,
      "light": 105,
      "dark": 175,
      "unknown": 96,
      "precision": 0.27925531914893614
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  },
  "nonWhiteLight": {
    "n": 29,
    "light": 28,
    "dark": 0,
    "unknown": 1,
    "precision": 0.9655172413793104
  },
  "darkBucketByColor": {
    "distinctColors": 25,
    "top": {
      "#1f1f1f": {
        "n": 252,
        "precision": 1
      },
      "#343434": {
        "n": 249,
        "precision": 1
      },
      "#141414": {
        "n": 219,
        "precision": 0.9863013698630136
      },
      "#242628": {
        "n": 198,
        "precision": 0.9949494949494949
      },
      "#2b2d42": {
        "n": 196,
        "precision": 0.9948979591836735
      },
      "#252525": {
        "n": 167,
        "precision": 1
      },
      "#262626": {
        "n": 166,
        "precision": 1
      },
      "#111213": {
        "n": 154,
        "precision": 1
      },
      "#353535": {
        "n": 33,
        "precision": 0.9696969696969697
      },
      "#1d1d1d": {
        "n": 18,
        "precision": 1
      }
    },
    "minPrecision": 0
  }
}