Examine source code of Daily Vocab Boost

{
  "manifest_version": 2,
  "name": "Daily Vocab Boost",
  "version": "1.0",
  "description": "Boost your English vocabulary daily with fun, interactive quizzes! Learn new words and their meanings in a simple popup format. Perfect for quick practice and long-term language improvement.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Daily Vocab Boost"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{016c563b-58b7-4184-96c6-a0d5e7c94f19}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}