Good morning Chris and welcome back!
Thank you for reaching out to us.
I would love to help you with this topic.
Normally, this would be handled via the customizer.
You can see it under Appearance > Customize > The Events Calendar
If that is not working to your liking, this can also be tackled via CSS.
I could help you with that if you can point me to a specific example of what elements you would like to change (a screenshot usually works great).
Let me know how that goes.
Best regards,
Geoff B.