Examine source code of Cute sheep wallpapers

{
  "name": "Cute sheep wallpapers",
  "description": "The interface is an image of a vast flower field with a cute sheep.",
  "version": "169456994",
  "browser_specific_settings": {
    "gecko": {
      "id": "{1e35e542-d981-474e-8bd7-9a6539638745}"
    }
  },
  "manifest_version": 3,
  "offline_enabled": true,
  "icons": {
    "128": "icons/128 sheep.png"
  },
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "chrome_settings_overrides": {
    "homepage": "index.html"
  },
  "action": {
    "default_title": "New Tab"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}