Clock Face: Digital clock for new tab page

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Clock Face: Digital clock for new tab page",
  "short_name": "Clock Face",
  "description": "Turn the default new tab page into an aesthetic digital clock.",
  "author": "Andrei Diaconu",
  "version": "2.1.2",
  "incognito": "split",
  "offline_enabled": true,
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "icons": {
    "16": "img/icon16.png",
    "48": "img/icon48.png",
    "72": "img/icon72.png",
    "96": "img/icon96.png",
    "128": "img/icon128.png",
    "144": "img/icon144.png",
    "192": "img/icon192.png"
  },
  "action": {
    "default_icon": "img/icon72.png"
  },
  "manifest_version": 3
}