Examine source code of Toggl Week Aggregator

{
  "manifest_version": 3,
  "name": "Toggl Week Aggregator",
  "version": "1.1.1",
  "icons": {
    "128": "icons/icon128.png"
  },
  "description": "Aggregate Toggl Track calendar durations by search term (current week view).",
  "browser_specific_settings": {
    "gecko": {
      "id": "toggl-week-aggregator@example.com",
      "strict_min_version": "109.0"
    }
  },
  "permissions": [],
  "host_permissions": [
    "https://track.toggl.com/*",
    "https://app.track.toggl.com/*",
    "https://toggl.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://track.toggl.com/*",
        "https://app.track.toggl.com/*",
        "https://toggl.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_idle"
    }
  ]
}