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manifest.json
{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Project4",
  "version": "1.0.6",
  "offline_enabled": true,
  "description": "",
  "display_in_launcher": true,
  "display_in_new_tab_page": true,
  "short_name": "Project4",
  "icons": {
    "16": "nsb/images/16.png",
    "128": "nsb/images/128.png"
  },
  "author": "Copyright 2014 ABC Company",
  "app": {
    "background": {
      "scripts": [
        "background.js"
      ]
    }
  }
}