Examine source code of VietEng Word Quest

{
  "manifest_version": 2,
  "name": "VietEng Word Quest",
  "version": "1.0",
  "description": "A fun and educational game to practice translating Vietnamese vocabulary into English, focusing on emotions and personality traits. Perfect for language learners!",
  "icons": {
    "48": "word_quest_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietEng Word Quest"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6e22fac7-796f-4205-935d-260d2161f9c5}"
    }
  }
}