Bleak

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Bleak",
  "short_name": "Bleak tab page",
  "description": "The weather can always get worse",
  "version": "0.84",
  "incognito": "split",
  "chrome_url_overrides": {
    "newtab": "index.html"
  },
  "manifest_version": 2,
  "browser_action": {
    "default_icon": "static/img/icon_sml.png"
  },
  "background": {
    "persistent": true,
    "scripts": [
      "static/js/background.js"
    ]
  },
  "icons": {
    "16": "static/img/icon16.png",
    "32": "static/img/icon32.png",
    "48": "static/img/icon48.png",
    "128": "static/img/icon128.png"
  },
  "content_security_policy": "script-src 'self' https://api.openweathermap.org https://use.typekit.net; object-src 'self'",
  "permissions": [
    "*://use.typekit.net/*",
    "webRequest",
    "webRequestBlocking",
    "geolocation"
  ]
}