Examine source code of Clock New Tab Page

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "version": "1.20.0",
  "description": "__MSG_appDescription__",
  "minimum_chrome_version": "112",
  "icons": {
    "32": "icon-32.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "chrome_url_overrides": {
    "newtab": "app/webext.html"
  },
  "chrome_settings_overrides": {
    "homepage": "app/webext.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{195350f5-980a-3bca-a2da-33b238ec9007}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "collects_data": false
      },
      "strict_min_version": "138.0"
    }
  },
  "permissions": [
    "storage",
    "search",
    "unlimitedStorage"
  ],
  "optional_permissions": [
    "bookmarks",
    "topSites"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ]
}