Examine source code of PACE Catalog

{
  "manifest_version": 2,
  "name": "PACE Catalog",
  "version": "1.2.4",
  "icons": {
    "19": "img/chrome/icon19.png",
    "48": "img/chrome/icon48.png",
    "96": "img/firefox/icon96.png",
    "128": "img/chrome/icon128.png"
  },
  "omnibox": {
    "keyword": "pace"
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "storage"
  ],
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "<all_urls>"
      ],
      "all_frames": true,
      "js": [
        "js/purify.min.js",
        "js/jquery-3.3.1.min.js",
        "js/start-up.js",
        "js/request-detector.js",
        "js/show-ribbon.js",
        "js/show-ad.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "view.html",
    "default_icon": {
      "19": "img/chrome/icon19.png",
      "48": "img/chrome/icon48.png",
      "96": "img/firefox/icon96.png",
      "128": "img/chrome/icon128.png"
    }
  },
  "web_accessible_resources": [
    "iframe.html",
    "js/bootstrap.min.js"
  ],
  "background": {
    "scripts": [
      "js/jquery-3.3.1.min.js",
      "js/background.js"
    ]
  }
}