Examine source code of Block Youtube Ads

{
  "name": "Youtube Ad Blocker",
  "description": "A lightweight, highly optimized ad blocker designed to instantly skip video ads, hide banners, and remove overlays on YouTube.",
  "version": "1.0",
  "manifest_version": 3,
  "icons": {
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "128": "images/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "32": "images/icon32.png",
      "48": "images/icon48.png",
      "128": "images/icon128.png"
    }
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content-main.js"
      ],
      "world": "MAIN",
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "css": [
        "content.css"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{2cf68b47-f2c7-4b5e-ad6d-ededa99c3a34}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}