Examine source code of LinkedZen (beta)

{
  "name": "LinkedZen (beta)",
  "description": "LinkedZen declutters LinkedIn by hiding the feed, sponsored content, and notifications. Focus on connections without distractions.",
  "manifest_version": 3,
  "version": "0.0.10",
  "icons": {
    "16": "icons/logo-16.png",
    "48": "icons/logo-48.png",
    "128": "icons/logo-128.png",
    "512": "icons/logo-512.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.linkedin.com/*"
      ],
      "css": [
        "content_scripts/content-0.css"
      ],
      "js": [
        "content_scripts/content-0.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "linkedzen@bo-carey"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [],
      "matches": [
        "*://*.linkedin.com/*"
      ]
    }
  ]
}