Examine source code of Vocab Voyager

{
  "manifest_version": 2,
  "name": "Vocab Voyager",
  "version": "1.0",
  "description": "An engaging quiz game to practice translating common English verbs to Vietnamese. Perfect for language learners looking to expand their vocabulary in a fun and interactive way.",
  "icons": {
    "48": "word_explorer_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Vocab Voyager"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5b46d9e0-07b5-44c2-b293-588af47df210}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}