Version 4.1.8 is often cited as the most stable release of the legacy series. It offered a streamlined interface that previewed the mask in real-time against checkered transparency or a solid color. This eliminated the guesswork that plagued many of Photoshop’s native tools at the time.
Mask Pro 4.1.8 rests in the digital hall of fame, alongside Kai’s Power Tools and Alien Skin Eye Candy—obsolete, powerful, and forever remembered by those who mastered it. Mask Pro 4.1.8
The plugin includes a comprehensive toolbox, featuring the Magic Brush for painting away backgrounds and the Chisel Tool for refining edges and removing "halos". Version 4