Examine source code of GMB Scanner

{
  "manifest_version": 2,
  "name": "GMB Scanner",
  "description": "GMB Scanner spots fake, invalid, or virtual office addresses and flags them.  Intended only for use by invitation.",
  "permissions": [
    "downloads"
  ],
  "version": "0.8",
  "content_scripts": [
    {
      "matches": [
        "https://www.google.com/maps*"
      ],
      "js": [
        "search.js",
        "place.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  }
}