Examine source code of VietPhrase Challenge

{
  "manifest_version": 2,
  "name": "VietPhrase Challenge",
  "version": "1.0",
  "description": "An engaging game to practice translating Vietnamese phrases into English, designed to boost language proficiency.",
  "icons": {
    "48": "phrase_challenge_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "VietPhrase Challenge"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{80ed82dc-f5e8-4d9e-886f-4abda19e199f}"
    }
  }
}