I am researching the possibility of embedding Figma previews as
<iframe ... /> into the documentation generated by DocC.
I can't find any possible way of doing that from within the markdown files or within the code-level documentation.
Is it something that can be done with DocC?
I don't think this is something that is possible today using only markdown files or code source comments since DocC does not permit raw HTML in its markdown input.
I do think there is potential for a future enhancement to allow something like this through the introduction of a new directive possibly. I imagine that supporting YouTube video embedding might require a similar type of functionality and may be a useful feature.
Thanks for your reply, I created a feature request for this.