Examine source code of Viet Tone Master Pro

{
  "manifest_version": 2,
  "name": "Viet Tone Master Pro",
  "version": "1.0",
  "description": "Master Vietnamese tones and accents with this interactive quiz extension! Practice identifying, adding, and correcting essential diacritics in common Vietnamese vocabulary. Perfect for learners looking to perfect their pronunciation and spelling skills through daily micro-challenges.",
  "icons": {
    "48": "tone_master_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Viet Tone Master Pro"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b9f4dbb8-7395-4ecd-9ef5-0d4089c7bc17}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}