Examine source code of Store Scout

{
  "manifest_version": 3,
  "name": "Store Scout",
  "version": "1.0.0",
  "description": "Exports data from Apple and Google Play stores",
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "96": "icons/icon96.png",
    "512": "icons/icon512.png"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "scripting",
    "downloads",
    "offscreen"
  ],
  "host_permissions": [
    "*://apps.apple.com/*",
    "*://play.google.com/*"
  ],
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "32": "icons/icon32.png",
      "48": "icons/icon48.png",
      "96": "icons/icon96.png",
      "512": "icons/icon512.png"
    },
    "default_title": "Store Scout",
    "default_popup": "popup/index.html"
  },
  "background": {
    "service_worker": "background/index.bundle.js",
    "scripts": [
      "background/index.bundle.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "store_scout@redbox_mobile"
    }
  }
}