Examine source code of Daily Vietnamese Pro

{
  "manifest_version": 2,
  "name": "Daily Vietnamese Pro",
  "version": "1.0",
  "description": "Master essential Vietnamese communication through an interactive flashcard-style quiz. Practice common verbs, directions, and time expressions.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Daily Vietnamese Pro"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2dea51aa-f8d0-4f84-8fec-cbf41ece0119}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}