{
  "visual_golden_fixtures": {
    "description": "Visual baseline golden fixtures for spec 037 validation",
    "screenshots": {
      "dashboard_42_tab_main": {
        "sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
        "description": "FI-0080 main tab — 3 charts in grid layout",
        "layout_fingerprint": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2",
        "tab_identifier": "main",
        "region": null,
        "chart_ids": [128, 129, 130],
        "viewport": {"width": 1920, "height": 1200}
      },
      "dashboard_42_tab_main_updated": {
        "sha256": "f3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b856",
        "description": "FI-0080 main tab — chart 128 moved to row 2 (layout changed)",
        "layout_fingerprint": "b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4",
        "tab_identifier": "main",
        "region": null,
        "chart_ids": [128, 129, 130],
        "viewport": {"width": 1920, "height": 1200}
      },
      "dashboard_42_tab_main_perceptual": {
        "sha256": "d3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b857",
        "description": "FI-0080 main tab — minor CSS change, visually equivalent",
        "layout_fingerprint": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2",
        "tab_identifier": "main",
        "region": null,
        "chart_ids": [128, 129, 130],
        "viewport": {"width": 1920, "height": 1200},
        "ssim_expected": 0.97
      }
    },
    "visual_baseline_entries": {
      "exact_match": {
        "baseline_id": "f5555555-6666-7777-8888-999999999999",
        "kind": "visual",
        "tab_identifier": "main",
        "expected_image_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
        "policy": {"type": "exact"},
        "status": "approved",
        "fingerprints": {
          "query": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2",
          "dataset": "b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4",
          "filter": "c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5",
          "layout": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2"
        }
      },
      "perceptual_match": {
        "baseline_id": "f6666666-7777-8888-9999-aaaaaaaaaaaa",
        "kind": "visual",
        "tab_identifier": "main",
        "expected_image_sha256": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855",
        "policy": {"type": "perceptual", "ssim_min": 0.95},
        "status": "approved",
        "fingerprints": {
          "query": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2",
          "dataset": "b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4",
          "filter": "c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5",
          "layout": "a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2c3d4e5f6a1b2"
        }
      }
    }
  }
}