Examine source code of Lexi Quest

{
  "manifest_version": 2,
  "name": "LexiQuest",
  "version": "1.0",
  "description": "A fun and educational quiz game to enhance your Vietnamese-to-English vocabulary skills with engaging word puzzles.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "LexiQuest"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{d91aa3e7-2648-492c-a9eb-327cc33643bd}"
    }
  }
}