Examine source code of Vietnamese Phrase Master

{
  "manifest_version": 2,
  "name": "Vietnamese Phrase Master",
  "version": "1.0",
  "description": "Level up your conversation skills with daily Vietnamese phrases. A simple, interactive quiz to master essential daily expressions.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Vietnamese Phrase Master"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a0e23d68-f04e-44db-9e2a-49b78b2a4ba8}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}