Examine source code of Ad Adjuster

{
  "manifest_version": 2,
  "name": "Ad Adjuster",
  "version": "1.0.1",
  "description": "Differentiates ads on Google from search results.",
  "icons": {
    "48": "icons/adjuster-48.png",
    "96": "icons/adjuster-96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.google.com/search?*"
      ],
      "js": [
        "adAdjuster.js"
      ]
    }
  ]
}