Examine source code of NewTab4Mac

{
  "manifest_version": 3,
  "name": "New Tab Extension",
  "version": "1.1.0",
  "description": "Extension pour personnaliser la page des nouveaux onglets",
  "permissions": [
    "storage"
  ],
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "newtab@hugoalves7.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "96": "icon-96.png",
    "128": "icon-96.png"
  }
}