Examine source code of Smart Life

{
  "name": "Smart Life",
  "description": "Ticket Collector Cross platform Extension",
  "version": "0.2.4",
  "manifest_version": 2,
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "browser_action": {
    "default_popup": "src/popup.html"
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "src/scripts/contentScript.js"
      ],
      "css": [
        "src/styles/index.css"
      ],
      "matches": [
        "*://*/*",
        "https://www.ticketmaster.co.uk/*",
        "https://www.ticketmaster.com/event/*",
        "https://www.ticketmaster.com/*/event/*",
        "https://www.ticketmaster.co.uk/event/*",
        "https://www.ticketmaster.oc.uk/*/event/*",
        "https://concerts.livenation.com/event/*",
        "https://concerts.livenation.ca/event/*",
        "https://concerts.livenation.com/*/event/*",
        "https://concerts.livenation.ca/*/event/*",
        "https://www.livenation.com/event/*",
        "https://www.livenation.com/*/event/*",
        "https://www.livenation.ca/event/*",
        "https://www.livenation.ca/*/event/*",
        "https://queue.livenation.com/*",
        "https://queue.livenation.ca/*",
        "https://queue.ticketmaster.com/*",
        "https://queue.ticketmaster.ca/*"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "activeTab",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{45da9327-d800-4f76-a70d-484b48370d58}"
    }
  }
}