Examine source code of game

{
  "manifest_version": 3,
  "name": "game",
  "version": "17.1.8",
  "description": "littel game ",
  "browser_specific_settings": {
    "gecko": {
      "id": "test@games.eu"
    }
  },
  "action": {
    "default_icon": "logo.png",
    "default_popup": "popup.html",
    "default_title": "game"
  },
  "permissions": [
    "storage",
    "activeTab",
    "alarms"
  ],
  "host_permissions": [
    "https://agame.com.com/*",
    "https://agame.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "service_worker": "background.js",
    "type": "module"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}