Black Definition MAC is an editing tool to help you edit the black saturation of images. The program can add or remove black shading on images to provide you a clearer picture with a lighter or darker effect that you want.
Black Definition MAC gives more emphasis to the background modeling of objects in images to provide the more defined black color that you want.
It can lighten an image to a certain point to make hidden objects become visible and it can also darken the surroundings of images. But, the program isn't only focused on giving more emphasis on black backgrounds.
Black Definition MAC also has a unique control to saturate color by providing it with more than the needed brightness. The only reason why it focuses on black is because Black Definition MAC considers this neutral color to be the foundation of other colors that provide more impact to images.