Help discoverability of `theme.compose` usage with prefix

When `theme.compose` (@dojo/widgets/middleware/theme NOT in framework) is used to compose themes together with a prefix these classes are not added to the widget classes list in parade.
It would be useful if parade could detail the widgets that can be targeted within a widget via a prefix.
For example, the `@dojo/widgets/typeahead` uses a `menu` prefix for the `List` that it renders but this is not very discoverable unless you look at the code itself.