Examine source code of Scholarometer

{
  "manifest_version": 2,
  "background": {
    "scripts": [
      "Core/SMBackground.js"
    ]
  },
  "content_scripts": [
    {
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      ],
      "css": [
        "Style/SMCore.css"
      ],
      "js": [
        "Library/polyfill.min.js",
        "Library/d3.min.js",
        "Library/auto-complete.js",
        "Library/spin.min.js",
        "Library/transliteration.min.js",
        "Library/moment.min.js",
        "Library/SMUtilities.js",
        "Library/SMMedia.js",
        "Core/SMCommunication.js",
        "Parser/SMGoogleScholarParser.js",
        "Content/SMBox.js",
        "Injector/GoogleScholar/root.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "Media/Images/icon.png",
    "default_title": "Last tagged profile"
  },
  "description": "Browser Extension for Academic Impact Analysis",
  "icons": {
    "48": "Media/Images/icon.png",
    "128": "Media/Images/icon_big.png"
  },
  "web_accessible_resources": [
    "Media/Images/*.png",
    "Media/Images/*.gif"
  ],
  "name": "Scholarometer",
  "permissions": [
    "http://scholar.google.com/",
    "https://scholar.google.com/",
    "https://scholarometer-test.cs.indiana.edu/",
    "https://scholarometer.indiana.edu/",
    "http://scholarometer-test.cs.indiana.edu/",
    "http://scholarometer.indiana.edu/",
    "storage"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "version": "5.1.0"
}