Examine source code of VietIdiom Explorer

{
  "manifest_version": 2,
  "name": "VietIdiom Explorer",
  "version": "1.0",
  "description": "Explore and master common Vietnamese idioms and cultural phrases through engaging daily mini-quizzes. Perfect for intermediate learners aiming to sound like a native speaker.",
  "icons": {
    "48": "idiom_explorer_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietIdiom Explorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{8871a14b-b71b-40b6-a6ef-8a62226e87d1}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}