If you have ever been to concerts, you know what makes you focus only on the artist and not on anybody else. Yes, you are right, its because of spotlights. Spotlights are commonly used in concerts and musical theaters to focus an audience’s attention on a performer as he moves around the stage.
Now if you want to make your audience focus at a particular position on your desktops, MouseLight does the same job on your Desktop.

When you are doing a PowerPoint presentation or a software demonstration and want the audience to focus on some specific area of the screen, MouseLight puts a circular spotlight around your cursor and highlights that area allowing your audience to follow you – the rest of the screen outside the spotlight circle is dimmed automatically.

MouseLight is available only for windows, but for Mac users their is a similar application called Mouseposé. The MouseLight costs $3 while the MousePosé costs $10.

Found Via (DI)