Examine source code of Smooth Search Tab

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "version": "1.3.5",
  "default_locale": "en",
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "short_name": "__MSG_appName__",
  "chrome_url_overrides": {
    "newtab": "newTab.html"
  },
  "permissions": [
    "storage"
  ],
  "manifest_version": 2,
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  }
}