Default icons without customized parameters

[feraio]

Hello,
I have a simple question that might turn into a suggestion.

I've been reading all of the information in the Docs while considering to implement glyphs in a project but could not find more details about the default icons when used.

For example, I see the <core-heart></core-heart> example but I can't see the actual icon to understand which variable it would be presented (I would assume path) or the stroke-width applied by default. It would be great to be able to visualize it or have this default parameters in the Docs if possible.

Thanks in advance, amazing job in this icon set!