Examine source code of Fast Auto Clicker

{
  "manifest_version": 3,
  "name": "Auto Clicker",
  "description": "Automatically clicks the active web page at regular intervals.",
  "version": "1.9",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d4959848-de0d-4ac8-86d2-7784027fa952}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "scripting"
  ],
  "action": {
    "default_title": "Auto Clicker",
    "default_popup": "popup.html",
    "default_icon": "icons/icon-48.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "toggle-auto-clicker": {
      "suggested_key": {
        "default": "Ctrl+Shift+U",
        "mac": "Command+Shift+U"
      },
      "description": "Toggle the auto-clicker on the active tab"
    }
  }
}