Examine source code of EmotionWordQuiz

{
  "manifest_version": 2,
  "name": "Emotion Word Quiz",
  "version": "1.0",
  "description": "An engaging game to practice Vietnamese-to-English vocabulary related to emotions. Ideal for English learners of all levels to enhance their word knowledge.",
  "icons": {
    "48": "emotion_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Emotion Word Quiz"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e5061466-bc4e-4eea-b760-c67d6e577a0a}"
    }
  }
}