Enabling Sales Order Category Colouring
This article will show you how to set up colour coding for sales order categories.
First, go to Settings > Modules > Sales Order/Invoices/Credits.
Tick the ‘Enable sales order category colours’ box. Then click on ‘Setup sales order category colours’.
Select the colours for your category, then click ‘OK’
Now go to Sales > Sales Orders, and you will see the colours under the ‘Category’ column.