Great product. The missing piece in learning painting. It's true that many artists turn photo to greyscale to study tonal values. Also, many artists take a photo of their painting and turn it to greyscale also to compare with the reference.
As a self-taught beginner artist, this tool is super handy! It saves me a significant amount of prep time otherwise spent using photo editors to generate the different values. Thank you!! My only suggestion would be to implement an optional grid overlay.
