KDE has long had a nice collection of useful kioslaves for viewing installed documentation, including viewers for manpages and info pages (used by GNU software).
For KDE 4.2 I had introduced another viewer, this time for Perl’s perldoc documentation, which used a look similar to the appearance at www.kde.org. At the same time I had ported kio_man, the manpage viewer to have a similar appearance.
Unfortunately I didn’t have time to also do likewise for kio_info, the info page viewer. That has now been rectified, as seen in the following image, which shows output from all 3 documentation filters:
At the same time I factored out the CSS into a common docfilter CSS suite, so that any improvements should fix all the docfilter-type KIOSlaves at once.