Examine source code of View Delivery Icon

{
  "manifest_version": 2,
  "name": "View Delivery Icon",
  "version": "1.0",
  "description": "The delivery view icon is this icon that often appears in delivery apps, e-commerce, or order management dashboards.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html",
    "default_title": "Click me!"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ff66a533-47c5-4e51-9aa9-cdc2395a9692}"
    }
  }
}