Yes. If you have old .PSD files saved with Mask Pro layers, you need version 4.1.8 to edit them without flattening. Additionally, some artists prefer the "color suppression" method for specific technical illustrations where AI hallucinates edges.
Even by today’s standards, the feature set of Mask Pro 4.1.8 was impressive. Here is a breakdown of what made it unique: Mask Pro 4.1.8
). It is widely recognized for its ability to extract complex subjects—such as hair, glass, and smoke—by using color-based selection rather than standard edge detection. Key Features and Capabilities Color Decontamination Technology Even by today’s standards, the feature set of Mask Pro 4
The concept was revolutionary in its simplicity. Instead of relying solely on contrast or trace-based selection, Mask Pro utilized "color decontamination." It allowed users to select colors they wanted to keep and colors they wanted to drop. The software then intelligently computed the transparency of pixels based on that color data. Even by today’s standards