Examine source code of Video Notes for YouTube

{
  "manifest_version": 3,
  "name": "Video Notes — Timestamped YouTube Notes",
  "short_name": "Video Notes",
  "version": "2.3.0",
  "description": "Take notes while watching youtube videos.",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "video-notes@prameshbajra",
      "strict_min_version": "115.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ]
      }
    }
  },
  "permissions": [
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://share-api.video-notes.workers.dev/*",
    "https://generativelanguage.googleapis.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*",
        "*://youtube.com/*"
      ],
      "js": [
        "scripts/content.js"
      ]
    }
  ]
}