As a learning experience, I'm creating an inherited theme from Lingonberry.
Notice that the partial, header.html.twig, makes a reference to site.author.gravatar.
What I'd like to do is to use site.author.avatar (does that exist?) or possibly page.header.author.avatar (does that exist?)
I haven't been able to find this in the documentation, but maybe I'm looking in the wrong place.
Or does site.author.gravatar (for example) work even for local "avatars"?
I see that \Grav\Common\User\DataUser\User exposes getAvatarUrl(), but how do I do that from a Twig template?