Examine source code of Zombie Bookmarks

{
  "name": "Zombie Bookmarks",
  "description": "Zombie Bookmarks",
  "version": "0.6.9",
  "manifest_version": 3,
  "options_page": "zombie_bookmarks-options.html",
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "zombie_bookmarks@ciuta.com",
      "strict_min_version": "109.0"
    }
  },
  "background": {
    "scripts": [
      "zombie_bookmarks-background.js"
    ]
  },
  "icons": {
    "128": "icons/icon16.png"
  },
  "permissions": [
    "menus",
    "storage",
    "contextMenus",
    "activeTab",
    "tabs"
  ],
  "action": {
    "default_title": "Zombie Bookmarks",
    "default_popup": "zombie_bookmarks-popup.html",
    "theme_icons": [
      {
        "light": "icons/icon16.png",
        "dark": "icons/icon16.png",
        "size": 128
      }
    ]
  }
}