plasma folderview shows ugly solid black line for focus hint in Kubuntu Karmic Alpha 2

(Using Kubuntu Karmic Alpha 2 (KDE 4.2.90))

When selecting one or more icons in a folder view on the desktop, the icon that actually has the mouse/keyboard focus has an ugly box of solid 1px black line drawn around its text. The box also stays around when the desktop background is clicked to select no icons (but disappears when another application gets the mouse/keyboard focus).

In Dolphin, a less intrusive dotted line is used instead. I think this is also what it used to be in plasma folder views in Kubuntu Jaunty.