Examine source code of YouTube on Hover Preview

{
  "name": "YouTube™ on Hover Preview",
  "description": "Watch YouTube videos instantly by hovering your mouse over any YouTube link on a webpage.",
  "version": "0.3.2",
  "manifest_version": 3,
  "permissions": [
    "storage"
  ],
  "optional_permissions": [
    "history"
  ],
  "host_permissions": [
    "*://www.youtube.com/*"
  ],
  "background": {
    "service_worker": "worker.js",
    "scripts": [
      "worker.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "data/inject/index.js"
      ],
      "css": [
        "data/inject/index.css"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_origin_as_fallback": true
    }
  ],
  "homepage_url": "https://add0n.com/youtube-hover.html",
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png",
    "256": "data/icons/256.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "data/loading.gif",
        "data/error.svg"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "options_ui": {
    "page": "data/options/index.html",
    "open_in_tab": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{732db00c-07ee-4763-a8c7-fd666803287e}",
      "strict_min_version": "128.0"
    },
    "data_collection_permissions": {
      "required": [
        "none"
      ]
    }
  }
}