chromium/chrome/test/data/chromeos/3p_diagnostics/diag-crx/manifest.json

{
  "name": "ChromeOS Diagnostics Test Extension",
  "version": "1.0.0",
  "manifest_version": 3,
  "chromeos_system_extension": {},
  "icons": {
    "16": "icon.png"
  },
  "permissions": [
    "os.diagnostics",
    "os.telemetry",
    "os.telemetry.serial_number"
  ],
  "background": {
    "service_worker": "sw.js"
  },
  "externally_connectable": {
    "matches": [
      "*://googlechromelabs.github.io/*",
      "isolated-app://pt2jysa7yu326m2cbu5mce4rrajvguagronrsqwn5dhbaris6eaaaaic/*"
    ]
  }
}