Zorro
Zorro is a utility to completely blank the screen except for a rectangular area selected by the user. This is especially useful for watching videos on your computer without being distracted by other programs.
TunnelVision
TunnelVision allows you to hide the parts of the screen where your mouse cursor is not, effectively increasing privacy (though ...
Cinemadrape
CinemaDrape helps you focus on your current task on screen, by instantly blanking or dimming the other less important areas in ...