Examine source code of Realtism | User App

{
  "manifest_version": 2,
  "name": "Realtism | User App",
  "version": "0.1",
  "description": "An extension to share your listings with your agent, by browsing property listings on; Zillow , Realtor ,Redfin & Trulia!",
  "homepage_url": "https://realtism.com",
  "permissions": [
    "tabs",
    "storage",
    "webNavigation",
    "<all_urls>"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.zillow.com/homedetails/*",
        "https://www.trulia.com/p/*",
        "https://www.redfin.com/*/*/*/*/home/*",
        "https://www.redfin.com/*/*/*/home/*",
        "https://www.realtor.com/realestateandhomes-detail/*"
      ],
      "js": [
        "ext_page.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "browser_action": {
    "default_icon": {
      "16": "images/16.png",
      "32": "images/32.png"
    },
    "default_popup": "ext_popup.html"
  },
  "background": {
    "scripts": [
      "ext_background.js"
    ],
    "persistent": true
  },
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "96": "images/96.png",
    "128": "images/128.png",
    "512": "images/512.png"
  }
}