Google Calendar™ on new Tab

manifest.json

{
  "manifest_version": 2,
  "version": "0.2.2",
  "name": "Google Calendar™ on new Tab",
  "description": "__MSG_description__",
  "default_locale": "en",
  "permissions": [
    "storage",
    "contextMenus"
  ],
  "chrome_url_overrides": {
    "newtab": "/data/page/index.html"
  },
  "options_ui": {
    "page": "/data/options/index.html"
  },
  "background": {
    "scripts": [
      "/v2/chrome.action.js",
      "/v2/chrome.contextMenus.create.js",
      "/v2/chrome.runtime.js",
      "worker.js"
    ]
  },
  "homepage_url": "https://webextension.org/listing/new-tab.html?from=calendar",
  "icons": {
    "16": "/data/icons/16.png",
    "32": "/data/icons/32.png",
    "48": "/data/icons/48.png",
    "64": "/data/icons/64.png",
    "128": "/data/icons/128.png",
    "256": "/data/icons/256.png"
  },
  "browser_action": {},
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1b1fe04-bc0b-4fdf-a44a-9aef0f01559d}"
    }
  }
}