Examine source code of AWS Verified Access

{
  "manifest_version": 2,
  "name": "__MSG_ManifestExtensionName__",
  "version": "0.1.4",
  "browser_specific_settings": {
    "gecko": {
      "id": "verified-access@amazonaws",
      "strict_min_version": "57.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "32": "./verified_access_icon@32.png",
    "64": "./verified_access_icon@64.png",
    "128": "./verified_access_icon@128.png"
  },
  "browser_action": {
    "default_icon": "./verified_access_icon@32.png",
    "default_popup": "popup.html"
  },
  "default_locale": "en",
  "permissions": [
    "nativeMessaging",
    "alarms",
    "cookies",
    "management",
    "idle",
    "storage",
    "webRequest",
    "https://*/"
  ]
}