Examine source code of Panda Wallpapers

{
  "manifest_version": 2,
  "name": "Panda Wallpapers",
  "description": "Transforms your new tab page with charming, high-quality panda-themed wallpapers.",
  "version": "1.0.0",
  "offline_enabled": true,
  "icons": {
    "128": "icons/128.png"
  },
  "background": {
    "scripts": [
      "sw.js"
    ],
    "presitent": true
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "scripting"
  ],
  "host_permissions": [
    "*://www.google.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{e465c54f-dbf0-42be-8123-6b01c2c3ea45}"
    }
  }
}