Examine source code of NetSuite HappyDiv

{
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "netsuite.happydiv@ahixson.com",
      "data_collection_permissions": {
        "required": [
          "websiteContent",
          "websiteActivity"
        ],
        "optional": []
      }
    }
  },
  "name": "NetSuite HappyDiv",
  "description": "A powerful navigation tool for NetSuite.",
  "version": "1.1.6",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "64": "images/icon-64.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "js": [
        "js/HappyDivTab.js",
        "content-script.js",
        "searchbox.js"
      ],
      "css": [
        "main.css"
      ],
      "matches": [
        "https://*.app.netsuite.com/app/*"
      ],
      "exclude_matches": [
        "https://*.app.netsuite.com/app/login/*"
      ],
      "all_frames": false
    }
  ],
  "background": {
    "type": "module",
    "scripts": [
      "service-worker.js"
    ]
  },
  "permissions": [
    "tabs",
    "contextMenus"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "csv-parser.js",
        "main.html",
        "welcome.html",
        "images/arrow-rotate.svg",
        "images/asterisk.svg",
        "images/code.svg",
        "images/copy.svg",
        "images/magnifying-glass.svg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}