Examine source code of LinkedIn NetworkUpdates

{
  "manifest_version": 3,
  "name": "LINetworkUpdates",
  "version": "1.0.2",
  "description": "This extension adds entries from the Network -> Catch Up page to the news section on the front page. This helps with finding birthdays, jobs changes and more.",
  "browser_specific_settings": {
    "gecko": {
      "id": "linetworkupdates@flomei.de",
      "strict_min_version": "109.0"
    }
  },
  "icons": {
    "32": "icons/logo-32.png",
    "64": "icons/logo-64.png"
  },
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "*://*.linkedin.com/mynetwork/catch-up/all/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/feed/*"
      ],
      "js": [
        "purify.min.js",
        "LINetworkUpdates.js"
      ]
    }
  ]
}