Examine source code of Tell me the title!

{
  "manifest_version": 3,
  "name": "tell me the title",
  "version": "1.1.0",
  "description": "",
  "author": "VolgaKurvar",
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/playlist?list=*"
      ],
      "js": [
        "index.js"
      ]
    }
  ],
  "host_permissions": [
    "http://www.youtube.com/playlist?list=*",
    "https://www.youtube.com/playlist?list=*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{fbb18c2d-2837-44c3-98a7-95909fb71201}",
      "strict_min_version": "109.0"
    }
  }
}