Examine source code of Tablenator

{
  "manifest_version": 2,
  "name": "Tablenator",
  "version": "1.0.18",
  "permissions": [
    "storage",
    "tabs",
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "content-style.css"
      ],
      "js": [
        "jquery-3.4.1.min.js",
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "16": "tablenator-16.png",
    "48": "tablenator-48.png",
    "128": "tablenator-128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "tablenator-16.png",
      "48": "tablenator-48.png"
    },
    "default_popup": "popup.html",
    "default_title": "Tablenator"
  },
  "web_accessible_resources": [
    "toolbar.html",
    "content-style.css",
    "select.jpg"
  ]
}