Examine source code of Container Home Page

{
  "manifest_version": 3,
  "name": "Container Home Page",
  "version": "2.1.0",
  "author": "jason kirtland",
  "description": "New tab page with container-organized links",
  "icons": {
    "48": "assets/icons/icon-48.png",
    "96": "assets/icons/icon-96.png",
    "128": "assets/icons/icon-128.png"
  },
  "permissions": [
    "contextualIdentities",
    "cookies",
    "tabs",
    "menus",
    "storage"
  ],
  "background": {
    "scripts": [
      "worker.js"
    ],
    "type": "module"
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'none'; style-src 'self'; img-src 'self' data:"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "container-home-page@discorporate.dev",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "websiteActivity"
        ],
        "description": "When enabled by the user, domain names from configured URLs are sent to Icon Horse (icon.horse) to retrieve site icons."
      }
    }
  }
}