Comment # 14 on bug 970653 from Wolfgang Bauer

(In reply to Cameron Poe from comment #12)
> I have the same issue :(
> 
> Unfortunately this is a bug!!!
Again, this is NO bug!!!

> Not only those shutdown, reboot and log-out icons have been changed, but for example application icons VLC, SMPlayer, Ktorrent and mime types icons for pictures and videos have been changed to breeze as well!!! :(

And this is totally unrelated to this bug report anyway.
These icons are taken from the configured icon theme.

> Funny thing is that you cannot uninstall breeze themes because it will uninstall the whole Plasma :o

And if you could, you would not have any icons at all.
Would you prefer that?