Examine source code of Smart Video AdBlock Pro

{
  "manifest_version": 2,
  "name": "YouTube AdBlock Pro",
  "version": "2.0",
  "description": "Advanced YouTube Ad Blocker with toggle and real-time counter.",
  "permissions": [
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://*.youtube.com/*",
    "*://*.doubleclick.net/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.svg",
      "48": "icons/icon48.svg",
      "128": "icons/icon128.svg"
    }
  },
  "icons": {
    "48": "icons/icon48.svg",
    "128": "icons/icon128.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-adblock-pro@khan",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}