Examine source code of Zen Auto-Close Tabs

{
  "manifest_version": 3,
  "name": "Zen Auto-Close Tabs",
  "version": "0.1.0",
  "description": "Automatically closes old unpinned tabs after a chosen interval. Designed for Zen Browser.",
  "permissions": [
    "alarms",
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "shared.js",
      "background.js"
    ]
  },
  "action": {
    "default_icon": "icons/icon.svg",
    "default_popup": "popup/popup.html",
    "default_title": "Zen Auto-Close Tabs"
  },
  "icons": {
    "48": "icons/icon.svg",
    "96": "icons/icon.svg"
  },
  "options_ui": {
    "browser_style": false,
    "page": "options/options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "@zen-auto-close-tabs",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}