As a legacy-style professional application, the software is generally lightweight compared to modern AI-heavy suites.
Specific for coloring black and white photos? cpac imaging pro 5 portable portable
The CPAC Imaging Pro 5 Portable is indicated for general-purpose digital radiography of the skeleton (including extremities, spine, chest, and abdomen) in adults, pediatric, and small animal patients. Suitable for use in: As a legacy-style professional application, the software is
Capable of coloring B&W photos with natural-looking skin tones and swapping plain backgrounds for more natural options. As a legacy-style professional application
: The "portable" version mentioned typically refers to a standalone version of the software that can run from a USB drive without requiring a full system installation.