Examine source code of VietPhrase Quest

{
  "manifest_version": 2,
  "name": "VietPhrase Quest",
  "version": "1.0",
  "description": "A fun, interactive quiz to learn common Vietnamese phrases and their English translations. Perfect for language learners looking to practice and improve their Vietnamese vocabulary!",
  "icons": {
    "48": "phrase_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietPhrase Quest"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{9962068c-76cc-4944-9f6d-7d04ffbce142}"
    }
  }
}