ORBE has two app embed when you install it: Geolocation Modal and Footer Selector.
Custom CSS - Geolocation Modal
If you have a paid ORBE plan you can customize the Geolocation Modal CSS through the "Advanced Settings" menu. There you can use our editor to customize the modal with CSS.
Custom JS - Footer Selector
This means that if you don't want to use Footer Selector you can use your own code to make it work and adapt it better to your theme.
How does it work?
Footer Selector is a form with a selector that when you make a change in the selector fires an event in JS that updates the cookie that manages ORBE and sends the form to Shopify.
This is the official JS code of the selector that you can use to create your own form:
As you can see the official form uses the ID md-footer-selector__country for the country and md-footer-selector__language for the language in addition to using the md-footer-selector__form component.