To quote from the referenced URL at fedora-docs-list:
I would like to see <example> sections take on a different rendered
style, somewhat like the <screen> sections. I think the right way to
do this is with an outlined box, but without changing the shade (BG
color). That should keep an <example> distinct from a <screen>.
Tammy agrees here:
I fixed this the same day but forgot to close the bug. It is fixed in
the CSS used for the website and the CSS in CVS.
Ticket moved to allow products to be removed from BZ.