Can one of you tell me how to configure mhonarc (version 1.2.3) to display
from replies, lines that normally start with a '>', in italics.
You need to create your own text/plain filter. Message body conversion
is handled through MIME filters (which you can add in your own).
Basically, you can add a regular expression that wraps any line
that starts with a '>' in <i></i> tags. Something like the
following in the text/plain filter may do the job:
$data =~ s%\&%\&%g;
$data =~ s%<%\<%g;
$data =~ s%>%\>%g;
$* = 1;
$data =~ s%^(\>.*)$%<i>$1</i>%g;
$* = 0;
# NOTE: Code untested
The default text/plain filter is located in the lib directory.