Zen tab: Beautiful, simple new tab

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Zen tab: Beautiful, simple new tab",
  "short_name": "Zen tab",
  "description": "Change your default new tab for a new one with widgets and landscapes based on your local weather. Simple, beautiful, useful.",
  "default_locale": "en_GB",
  "version": "1.18.1",
  "icons": {
    "16": "zentab_16.png",
    "32": "zentab_32.png",
    "48": "zentab_48.png",
    "128": "zentab_128.png"
  },
  "incognito": "split",
  "permissions": [
    "geolocation",
    "topSites",
    "bookmarks",
    "chrome://favicon/",
    "http://query.yahooapis.com/v1/public/*",
    "http://weather.yahooapis.com/*",
    "http://fonts.googleapis.com/*",
    "http://zen-tab.com/*",
    "https://zen-tab.com/*",
    "https://*.staticflickr.com/*"
  ],
  "chrome_url_overrides": {
    "newtab": "tab.html"
  },
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "content_security_policy": "script-src 'self' https://zen-tab.com; object-src 'self'",
  "manifest_version": 2
}