I have always like the feature in WindowsFX where you can highlight the active window by dimming the background. I was hoping that the new version, WindowFX 6.04, would have fixed this issue, but it didn't. When you close the active window, the background stays dimmed. It doesn't return on its own. You need to click on the dimmed background/window to return it to its normal state. Minor, I guess, but it seems the software should do that automatically.