This is an important part for your website but you can change it super easy way. Just go to toolbar menu in customize. Everything you see live preview so I think don’t need tell much. You can override your layout for specific page from those specific page settings.
You can show or hide toolbar from hereIf you want full width toolbar so check mark to the “Toolbar Fullwidth”.You can select toolbar text color from here.You can select toolbar background color from here.Select from here what you want to see in the toolbar left area.Select from here what you want to see in the toolbar right area