Examine source code of Tablings Dynamic

{
  "manifest_version": 3,
  "name": "Tablings Dynamic",
  "version": "1.4.2",
  "description": "Custom new tab page with clock, Wikipedia, year progress, and weather.",
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "8bit.sergiu@gmail.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}