Yes, you have the flexibility to update both the icon and logo that you've previously uploaded at any time.

When you make changes to the icon, the new icon will be immediately visible on your Fincent dashboard. 

However, it's important to note that the updated icon will be included only in emails sent after the logo change or in reports and invoices generated after the new images are uploaded. Any emails sent before the icon change and any reports or invoices generated before the image update will still reflect; the previous logo.