I didn't know I needed this til I downloaded it!
HazeOver runs in the background and adds a translucent dark screen behind a window you’re using at the moment. When you switch to a different window, HazeOver automatically fades the previously used window. You can select between instant switch or a smooth animation. The application is energy-efficient and un…See more
@bramk ditto! I would never have thought that this would be useful until I tried it. Wow it's fantastic. The only question is how long until Apple co-opts this feature?