Examine source code of youtube playlist delete

{
  "name": "youtube playlist delete",
  "version": "0.1.0",
  "manifest_version": 3,
  "description": "Bulk-clear YouTube playlists",
  "icons": {
    "16": "img/icon-16.png",
    "48": "img/icon-48.png",
    "128": "img/icon-128.png"
  },
  "action": {
    "default_popup": "src/popup.html",
    "default_icon": {
      "16": "img/icon-16.png",
      "48": "img/icon-48.png",
      "128": "img/icon-128.png"
    },
    "theme_icons": [
      {
        "light": "img/icon-16.png",
        "dark": "img/icon-dark-16.png",
        "size": 16
      },
      {
        "light": "img/icon-48.png",
        "dark": "img/icon-dark-48.png",
        "size": 48
      },
      {
        "light": "img/icon-128.png",
        "dark": "img/icon-dark-128.png",
        "size": 128
      }
    ]
  },
  "background": {
    "scripts": [
      "src/background/index.js"
    ],
    "type": "module"
  },
  "permissions": [
    "activeTab",
    "scripting",
    "tabs",
    "storage",
    "identity"
  ],
  "host_permissions": [
    "https://www.googleapis.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "youtube-playlist-delete@vishnuroshan4",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}