Examine source code of Support Worker - TOP SW

{
  "name": "Support Worker",
  "version": "1.5.1",
  "permissions": [
    "contextMenus",
    "sessions",
    "tabs",
    "webNavigation",
    "webRequest",
    "webRequestBlocking"
  ],
  "icons": {
    "128": "logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://top.startingwork.it/*"
      ],
      "run_at": "document_idle",
      "js": [
        "contenuto.js"
      ]
    }
  ],
  "manifest_version": 2
}