Currently

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Currently",
  "version": "5.1.1",
  "manifest_version": 2,
  "description": "Replace new tab screen with current time and weather.",
  "background": {
    "scripts": [
      "core/index.js"
    ]
  },
  "icons": {
    "16": "icon16.png",
    "96": "icon96.png",
    "128": "icon128.png"
  },
  "chrome_url_overrides": {
    "newtab": "public/index.html"
  },
  "permissions": [
    "geolocation"
  ],
  "content_security_policy": "script-src 'self' https://www.google-analytics.com; object-src 'self';",
  "web_accessible_resources": [
    "*.json"
  ]
}