{
  "testedAt": "2026-09-30",
  "environment": "Windows desktop Chrome; one local test page; browser zoom 100%; screen audio, microphone, and webcam off",
  "method": "Actual Toolit ScreenRecording path. The user selected each surface in the Chrome picker. Each condition ran once for approximately eight seconds. Invalid selections were excluded.",
  "testPage": "tests/browser/screen-recorder-clarity.html",
  "rows": [
    { "surface": "browser", "requestedHeight": 720, "trackWidth": 1280, "trackHeight": 720, "fileWidth": 1280, "fileHeight": 588, "seconds": 8, "bytes": 86360, "format": "mp4" },
    { "surface": "browser", "requestedHeight": 1080, "trackWidth": 1920, "trackHeight": 1080, "fileWidth": 1920, "fileHeight": 882, "seconds": 8.01, "bytes": 162399, "format": "mp4" },
    { "surface": "window", "requestedHeight": 720, "trackWidth": 1280, "trackHeight": 720, "fileWidth": 1206, "fileHeight": 720, "seconds": 8.02, "bytes": 111030, "format": "mp4" },
    { "surface": "window", "requestedHeight": 1080, "trackWidth": 1920, "trackHeight": 1080, "fileWidth": 1808, "fileHeight": 1080, "seconds": 8.02, "bytes": 249160, "format": "mp4" },
    { "surface": "monitor", "requestedHeight": 720, "trackWidth": 1280, "trackHeight": 720, "fileWidth": 1152, "fileHeight": 720, "seconds": 8, "bytes": 171462, "format": "mp4" },
    { "surface": "monitor", "requestedHeight": 1080, "trackWidth": 1920, "trackHeight": 1080, "fileWidth": 1728, "fileHeight": 1080, "seconds": 8.01, "bytes": 272337, "format": "mp4" }
  ],
  "limits": [
    "The six clips were not scored with a native-pixel text legibility test.",
    "File size is not a picture-quality score.",
    "Results from one Chrome/Windows setup do not predict other devices or browsers.",
    "A first whole-screen capture of the wrong monitor was excluded and its temporary preview discarded."
  ]
}