Examine source code of Green Privacy

{
  "manifest_version": 2,
  "name": "Green Privacy",
  "version": "1.0",
  "description": "Bewertet Datenschutz & Nachhaltigkeit von Websites – komplett lokal und ohne Tracking. Datenquellen: ToS;DR und The Green Web Foundation.",
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "32": "icons/privacygreen-32.png",
    "48": "icons/privacygreen-48.png",
    "96": "icons/privacygreen-96.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "web_accessible_resources": [
    "websites.json"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@green-privacy.sandiegokun",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}