When the application launches, the center of the screen (~ 1/9 of the total screen area) is unmasked, and the rest of the screen is masked. I couldn’t resize the unmasked portion or even relocate it.Only two customization options seem to exist: the (1) opacity and (2) color of the mask.The app hasn’t been updated in 8 years, apparently, so even though it somehow manages to run on Apple Silicon, it should be considered defunct. It certainly shouldn’t be considered useful, in any case.

One weird problem - on my 13” Retina Powerbook the whole screen is masked except for one pixel row at the top of the screen, a white line across the top. And it seems the white line is in the Masquerade app bc it’s even there if the window behind it is blue or black. Strange bug.Otherwise it’s great.

App installed fine, but simply won't launch when I try to open it. I am using OS 10.6.8. Concept sounds interesting, so I really would like to try it.

I had some problems getting it to work on my system, and the dev was really great about responding and helping me get it working. Thanks, Riccardo! Highly recommended for anyone who wants to darken the background around a window. You can’t go wrong! Just get it! 5 Stars! Cheers, Darrell