+@cindex text/x-gnus-verbatim
+@c Is @vindex suitable for a face?
+@vindex mm-uu-extract
+Some inlined non-@acronym{MIME} attachments are displayed using the face
+@code{mm-uu-extract}. By default, no @acronym{MIME} button for these
+parts is displayed. You can force displaying a button using @kbd{K b}
+(@code{gnus-summary-display-buttonized}) or add @code{text/x-gnus-verbatim} to
+@code{gnus-buttonized-mime-types}, @xref{MIME Commands, ,MIME
+Commands, gnus, Gnus Manual}.
+