Version: (using KDE 4.0.2) Installed from: Debian testing/unstable Packages After installing 4.0.2, the state of the cashew nut in the tool box is inverted. It is yellow if the toolbox is inactive and if I hover it with the mouse, the toolbox slides out and the nut fades to gray. After moving the mouse somewhere else, the toolbox slides back into its corner and the nut fades to yellow again.
Today I had a look at a live cd shipping kde 4.0.2 and the fade animation was the same like here in my case. I guess the fading direction was swapped (or was it ever the other way around?). Anyway, I consider this as my mistake and close the report. :)