Examine source code of Youtube Ads Blocker

{
  "action": {
    "default_icon": {
      "16": "icons/i16.png",
      "19": "icons/i19.png",
      "32": "icons/i32.png",
      "38": "icons/i38.png",
      "128": "icons/i128.png"
    },
    "default_popup": "popup.html",
    "default_title": "Options"
  },
  "background": {
    "scripts": [
      "service-worker.js"
    ],
    "service_worker": "service-worker.js"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "content.js"
      ],
      "matches": [
        "*://*.youtube.com/*"
      ],
      "run_at": "document_start"
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "enabled": true,
        "id": "youtube",
        "path": "rules/youtube.json"
      }
    ]
  },
  "default_locale": "en",
  "description": "__MSG_appDesc__",
  "host_permissions": [
    "<all_urls>"
  ],
  "icons": {
    "16": "icons/i16.png",
    "19": "icons/i19.png",
    "32": "icons/i32.png",
    "38": "icons/i38.png",
    "128": "icons/i128.png"
  },
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "permissions": [
    "declarativeNetRequest",
    "declarativeNetRequestWithHostAccess",
    "declarativeNetRequestFeedback",
    "storage",
    "scripting",
    "tabs",
    "alarms"
  ],
  "short_name": "Youtube Adblocker",
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "3.2.4",
  "web_accessible_resources": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "resources": [
        "scriptlets.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "brendajocook5@gmail.com",
      "strict_min_version": "42.0"
    }
  }
}