Examine source code of AWS SAML SearchBox

{
  "manifest_version": 2,
  "name": "saml-searchbox",
  "author": "Wojciech Inglot",
  "homepage_url": "https://github.com/winglot/saml-searchbox",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "https://signin.aws.amazon.com/saml",
        "https://signin.amazonaws-us-gov.com/saml"
      ],
      "js": [
        "saml-searchbox.js"
      ]
    }
  ]
}