Examine source code of Popcultcha Linkify

{
  "manifest_version": 2,
  "name": "Popcultcha Linkify",
  "short_name": "PCC Linkify",
  "description": "__MSG_appDesc__",
  "version": "1.2resigned1",
  "default_locale": "es",
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.popcultcha.com.au/sales/order/view/order_id/*"
      ],
      "css": [
        "css/styles.css",
        "css/fontawesome-all.min.css"
      ],
      "js": [
        "js/jquery-3.2.1.min.js",
        "js/main.js"
      ]
    }
  ],
  "web_accessible_resources": [
    "css/fontawesome-all.min.css",
    "webfonts/*.*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{88f4762d-8077-4f29-88c8-b1bc06e2ff65}"
    }
  }
}