Examine source code of Google Sponsored Remover

{
  "manifest_version": 3,
  "name": "Google Sponsored Remover",
  "version": "1.0.0",
  "description": "Remove the sponsored listings on google searches!",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.google.com/*"
      ],
      "js": [
        "scripts/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "action": {
    "default_popup": "about.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "googlesponsoredremover@ryanstew.art"
    }
  }
}