Examine source code of Soundcloud Coolant

{
  "manifest_version": 2,
  "name": "Soundcloud Coolant",
  "description": "Browser extension that makes Soundcloud stop burning your lap and eating your battery",
  "author": "Dietrich Ayala",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "*://soundcloud.com/*"
      ],
      "js": [
        "content-script.js"
      ]
    }
  ],
  "permissions": []
}