Examine source code of Property Inspector (BETA)

{
  "manifest_version": 2,
  "name": "Property Inspector",
  "version": "0.3.16",
  "description": "Helps you to identify defects before you buy a property",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "assets/icon-32.png"
    }
  },
  "icons": {
    "32": "assets/icon-32.png",
    "64": "assets/icon-64.png",
    "128": "assets/icon-128.png"
  },
  "background": {
    "scripts": [
      "js/sw.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.rightmove.co.uk/*",
        "https://*.zoopla.co.uk/*"
      ],
      "js": [
        "js/inject.js"
      ],
      "css": [
        "css/inject.css"
      ]
    }
  ],
  "oauth2": {
    "client_id": "<Your Client Id>",
    "scopes": [
      "profile",
      "email"
    ]
  },
  "host_permissions": [
    "<all_urls>",
    "https://*.cloudfunctions.net/*"
  ],
  "permissions": [
    "identity",
    "storage",
    "tabs",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{89d6cc04-3b37-4b0c-9bd3-03bdc4d69c96}"
    }
  }
}