articles will be available when unplugged.
The first visual effect is the @samp{%O} spec. If you customize
-gnus-summary-line-format to include this specifier, you will add a
-single character field that indicates an article's download status.
+@code{gnus-summary-line-format} to include this specifier, you will add
+a single character field that indicates an article's download status.
Articles that have been fetched into either the Agent or the Cache,
will display @code{gnus-downloaded-mark} (defaults to @samp{+}). All
other articles will display @code{gnus-undownloaded-mark} (defaults to
situation, you have two choices available. First, you can completely
disable the undownload faces by customizing
@code{gnus-summary-highlight} to delete the three cons-cells that
-refer to the gnus-summary*-undownloaded-face faces. Second, if you
-prefer to take a more fine-grained approach, you may set the
+refer to the @code{gnus-summary-*-undownloaded-face} faces. Second, if
+you prefer to take a more fine-grained approach, you may set the
@code{agent-disable-undownloaded-faces} group parameter to t. This
parameter, like all other agent parameters, may be set on an Agent
Category (@pxref{Agent Categories}), a Group Topic (@pxref{Topic