Styling Nested Sections

[noynek]

I've spent the last few weeks working in RJSF and one of the challenges I can't figure out is get control over the styling of nested form components.

For example, I often have forms like

       titleA
          formFields
             titleB
                 nestedFormFields

I want to style titleB differently from titleA. Similarly, I may want to indent or apply a background color to the nestedFormFields. I can do much of this using UISchema properties, but it's a lot to configure on bigger forms.

More ideally, I could style based on the level index or something.

I'm curious how others are approaching this. Thanks