De-lighting , shadow removing/separating AI tool

I had this super cool  soft on my mac mini which I lost few years ago and I miss it a lot.    https://www.fxguide.com/fxfeatured/tandent-lightbrush-engineering-an-image/.

The company seems disappeared in thin air like a ghost   and the soft is no more available.    

Please Adobe do  something like this . I don't need "regenrator".    I need  to remove shadows at all or rather split the shadows as a layer .