when i use exposé, the background either fades (with F9 and F10) or shift out of the screen (with F11). I'm guessing this happens because exposé will recognize it as an app running in full screen. So I'm guessing this is a thing really hard to fix or simply impossible due to the nature of how exposé works. I wish the developer knows how to deal with this in the future because that'll be really sweet. For now, I'll use (although ironically i thought i would never need it again due to exposé's F11) I'll use ShowDesktop whenever this app is running.