Personaliser le menu des rendez-vous multi-services

I’m having trouble with
The multi-service booking menu design customization.

Working in
Wix Studio Editor (Bookings App).

What I’m trying to do
I’d like to customize the appearance of the multi-service booking menu — specifically change the text size, colors, fonts, and general styling so it fits my brand design.

What I’ve tried so far
I checked the editor’s style options and also searched the forum/documentation, but I couldn’t find a way to adjust those elements. It seems the booking widget has limited design flexibility.

Extra context
It would be great if we could control these styles directly in Wix Studio (similar to how we edit text boxes or buttons). Screenshots attached to show what I mean.