Examine source code of World Geography Atlas

{
  "manifest_version": 2,
  "name": "World Geography Atlas",
  "version": "1.0",
  "description": "Challenge your global knowledge! Identify the capital city for each country displayed in this interactive geography quiz.",
  "icons": {
    "48": "map-icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "World Geography Atlas"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7eecf822-316e-4506-ab0f-7e2b2f4aab99}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}