Examine source code of Lexicon_Challenge

{
  "manifest_version": 2,
  "name": "Lexicon Challenge",
  "version": "1.0",
  "description": "A simple and fun quiz game to improve your Vietnamese-to-English vocabulary through interactive word puzzles.",
  "icons": {
    "48": "vocab_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Lexicon Challenge"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{11ea9468-b2a7-49bf-830d-820939629dce}"
    }
  }
}