<li>\subpage free_faces_page "Free faces"</li>
<li>\subpage bare_border_faces_page "Bare border faces"</li>
<li>\subpage over_constrained_faces_page "Over-constrained faces"</li>
<li>\subpage free_faces_page "Free faces"</li>
<li>\subpage bare_border_faces_page "Bare border faces"</li>
<li>\subpage over_constrained_faces_page "Over-constrained faces"</li>