Examine source code of YouTubeNotes

{
  "manifest_version": 3,
  "name": "YouTubeNotes",
  "version": "1.0.0",
  "description": "Take timestamped notes while watching YouTube videos. Jump to timestamps, organize notes by video. No API key needed!",
  "icons": {
    "48": "assets/icons/icon-48.png",
    "96": "assets/icons/icon-96.png",
    "128": "assets/icons/icon-128.png"
  },
  "action": {
    "default_icon": {
      "48": "assets/icons/icon-48.png",
      "96": "assets/icons/icon-96.png"
    },
    "default_title": "YouTubeNotes",
    "default_popup": "src/popup/popup.html"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "src/content/youtube.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "youtubenotes@video.tools",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}