Examine source code of Check Trustpilot

{
  "name": "Check Trustpilot",
  "description": "Check the Trustpilot rating of a website without having to leave the site",
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "action": {
    "default_popup": "src/pages/Popup/index.html",
    "default_icon": "img/icon-34.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "host_permissions": [
    "*://uk.trustpilot.com/*"
  ],
  "icons": {
    "128": "img/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{04b1c4d3-8c40-4d3f-bbfe-64531d665294}"
    }
  },
  "manifest_version": 3,
  "version": "0.1.1"
}