In my system the icon-file used for ark ist named "utilities-file-archiver.png"
and is located for example in /usr/lib/kde4/share/icons/oxygen/48x48/apps/
This file is in the kde-icons-oxygen package.
So if this file isn`t there, try to reinstall this package.
In my system the icon-file used for ark ist named "utilities- file-archiver. png"
and is located for example in /usr/lib/ kde4/share/ icons/oxygen/ 48x48/apps/
This file is in the kde-icons-oxygen package.
So if this file isn`t there, try to reinstall this package.