Examine source code of Lexicon Journey

{
  "manifest_version": 2,
  "name": "Lexicon Journey",
  "version": "1.0",
  "description": "A fun and educational quiz game to practice translating English words related to daily activities into Vietnamese, enhancing your vocabulary skills.",
  "icons": {
    "48": "lexicon_journey_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Lexicon Journey"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e1aa8e01-2290-4745-8ee4-bbac02613501}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}