With how shadow dom elements are in a separate scope that requires knowing the parent element has a shadowRoot there is a gap in covering this use case with the prototyper. To resolve this issue there would have to be a way to detect that an element has a shadowRoot with elements that need to be converted.

The hardest part is how some elements' shadowRoot uses assigned elements to tie elements that are siblings of the shadowRoot for said element.

A view would be something like the following:

app-element
--shadowRoot
----div
------section.nav(assigned)
--section.nav
----ul
...