Even small details of a GUI contribute to the look (of course) and feel and i got tired of this old "loading folder" animation in Konq (you know, that small folder icon with a moving gear when you open it).
NOTE that the screenshot has been scaled to 300%! The original icons look of course cleaner, however smaller resolution of course
The last frame with just the plain folder is there for a small break before the "scan" runs the next time; it looks nicer like that.
Untar the file in your home dir, it all goes to ~/.kde/share/icons/crystal/16x16/actions
If it's not ~/.kde for you or other paths are different, you got to move the icons in yourself.