OverPlay - YouTube chat overlay in fullscreen

manifest.json

{
  "manifest_version": 3,
  "name": "OverPlay - YouTube chat overlay in fullscreen",
  "version": "0.3.2",
  "description": "Read and write chat messages while your YouTube player is in fullscreen mode.",
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "js": [
        "index.js"
      ],
      "css": [
        "index.css"
      ]
    },
    {
      "matches": [
        "https://www.youtube.com/live_chat?*",
        "https://www.youtube.com/live_chat_replay?*"
      ],
      "css": [
        "live_chat.css"
      ],
      "all_frames": true
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ]
    }
  ],
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}