Opencart 3.0 & Journal3 checkout-Success Page

Below is a drop-in smart Success Page extension for OpenCart 3.0.x, that replaces the default minimal “Your order has been placed” screen with a full order summary.

It shows:

Order ID
Customer info
Payment / Shipping method
Address
Products
Totals
Comment
Continue button
Adds also Print Invoice button on the Checkout Success page,
styled for default-Journal 3 and linked to the customer invoice view.