Examine source code of Smart Vocabulary Trainer

{
  "manifest_version": 2,
  "name": "Smart Vocabulary Trainer",
  "version": "1.0",
  "description": "A simple and engaging popup quiz extension for practicing common everyday Vietnamese words translated into English. Perfect for beginners to build practical vocabulary through quick, fun challenges.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Vietnamese Daily Vocab Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{73cbe4bf-4cc6-42f5-8b8a-107aa3287944}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}