Switching To Perth Pro

I just became a lifetime member (thank you so much for the sale BTW). If I switch my sites theme from Perth, to Perth Pro, will any thing change or will it still be and look the same, just with more options?

I only want to add Woo Commerce (I think, still reading about it) and do not want anything about the looks or current function of my 3 matching, incomplete sites to change.

Realtors.Video

AnimatedBusiness.Cards

RealtorsWeb.Site

Well, they’re different themes so any changes from the Customizer will be lost and would need to be redone when switching. Other things will stay in place, like the layouts etc.