Examine source code of Playlist Wrangler

{
  "manifest_version": 3,
  "name": "Playlist Wrangler: Manager for YouTube",
  "version": "1.20.2",
  "description": "Organize any YouTube playlist. Search it, filter it, and split a huge Watch Later into clean playlists. All local, no sign-in.",
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_title": "Open Playlist Wrangler panel"
  },
  "background": {
    "scripts": [
      "service-worker-loader.js"
    ],
    "type": "module"
  },
  "commands": {
    "toggle-panel": {
      "suggested_key": {
        "default": "Alt+Shift+P",
        "mac": "MacCtrl+Shift+P"
      },
      "description": "Open or close the Playlist Wrangler panel"
    }
  },
  "permissions": [
    "storage",
    "unlimitedStorage",
    "cookies",
    "alarms",
    "contextMenus",
    "scripting"
  ],
  "host_permissions": [
    "https://www.youtube.com/*"
  ],
  "content_scripts": [
    {
      "js": [
        "assets/index.tsx-loader-BOB_p5jD.js"
      ],
      "matches": [
        "https://www.youtube.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "sidebar_action": {
    "default_panel": "src/sidepanel/index.html",
    "default_title": "Playlist Wrangler",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "open_at_install": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "playlist-wrangler@naxatar.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": [
          "technicalAndInteraction",
          "personallyIdentifyingInfo"
        ]
      }
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.youtube.com/*"
      ],
      "resources": [
        "assets/playlistIcons-B4uAYBp3.js",
        "assets/markdown-BMVgzfoo.js",
        "assets/config-B_v8JEyT.js",
        "assets/analytics-BysZggrJ.js",
        "assets/index.tsx-Dk6_OQng.js"
      ]
    }
  ]
}