Examine source code of LinkedIn Feed Cleaner

{
  "manifest_version": 3,
  "name": "LinkedIn Feed Filter",
  "version": "1.0",
  "description": "Hide LinkedIn posts with specific keywords (e.g., '10x', 'vibe coding').",
  "permissions": [
    "storage",
    "activeTab",
    "scripting"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.linkedin.com/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "LinkedIn Feed Filter"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "linkedin-post-filter@smh95826.github",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "/icons/icon-16.png",
    "32": "/icons/icon-32.png",
    "48": "/icons/icon-48.png",
    "64": "/icons/icon-64.png",
    "128": "/icons/icon-128.png"
  }
}