Examine source code of auto-skip-youtube-ads

{
  "manifest_version": 2,
  "name": "auto-skip-youtube-ads",
  "version": "1.1",
  "description": "this is an extension for youtube ads, it's automatically skip youtube ads",
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "ad.js"
      ]
    }
  ]
}