Examine source code of Petra

{
  "manifest_version": 3,
  "name": "Petra",
  "short_name": "Petra",
  "version": "0.2.1",
  "description": "Petra viewer and feedback.",
  "icons": {
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "action": {
    "default_title": "Petra",
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/48.png",
      "128": "icons/128.png"
    }
  },
  "host_permissions": [
    "https://addons.sbs/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "aps@petra.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}