Examine source code of Recent Tabs

{
  "name": "Recent Tabs",
  "version": "5.0",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "background": {
    "service_worker": "background.js"
  },
  "options_page": "options.html",
  "icons": {
    "16": "images/icon-16.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "permissions": [
    "storage",
    "scripting"
  ],
  "optional_permissions": [
    "tabs"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ],
  "commands": {
    "toggleTabs": {
      "suggested_key": {
        "default": "Ctrl+Tab",
        "mac": "MacCtrl+Tab"
      },
      "description": "__MSG_toggleTabsDesc__"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "images/extension-icon.png",
        "images/document.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    },
    {
      "resources": [
        "options.html"
      ],
      "matches": [
        "https://jasonsavard.com/*"
      ]
    }
  ],
  "manifest_version": 3,
  "update_url": "https://edge.microsoft.com/extensionwebstorebase/v1/crx"
}