Examine source code of ytBlindrs

{
  "manifest_version": 2,
  "name": "ytBlindrs",
  "version": "1.2",
  "description": "Blocks all the recommended and related videos on youtube from being seen.",
  "icons": {
    "48": "logo.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "ytBlindrs.js"
      ],
      "run_at": "document_start"
    }
  ]
}