In bug#49433 I noted how shr-tag-h1 creates a faulty anonymous face that
users cannot inspect properly.  The attached patch fixes this issue and
also provides named faces for all shr heading levels from 1-6.

The attributes of those new faces are the same as before for
backward-compatibility in terms of visuals.

Thank you!

-- 
Protesilaos Stavrou
https://protesilaos.com