Examine source code of Idiom Quest

{
  "manifest_version": 2,
  "name": "Idiom Quest",
  "version": "1.0",
  "description": "Master Vietnamese idioms with Idiom Quest! This engaging browser extension offers interactive quizzes to learn the meanings of common Vietnamese idioms, perfect for language learners and cultural enthusiasts looking to deepen their understanding of Vietnamese expressions.",
  "icons": {
    "48": "idiom_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Idiom Quest"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{aba46acb-518b-45ba-ad95-36e3b62713b8}"
    }
  }
}