Examine source code of Global Capitals Quiz

{
  "manifest_version": 2,
  "name": "Global Capitals Quiz",
  "version": "1.0",
  "description": "Explore the world in English! This popup quiz gives a Vietnamese clue about a country’s capital or flag — guess the correct English name. Perfect for travelers, geography buffs, and learners who love global adventures.",
  "icons": {
    "48": "globe_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Global Capitals Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2351d280-bc66-46f4-8983-71793bf703d9}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}