Working with Masks is greater than in any other application I have worked with so far, the ease of having child layers and being able to stack a mask over the other truly is amazing.
One thing that I have found disorienting is that when I use the colour picker tool, rather than picking a value of black an white from the mask that I am working on, Afphoto decides to pick a colour from the Parent Layer (Even when the Source is set to "Current Layer" while having the mask selected).
Even though working a mask will only paint with the luminosity value of the sample taken, as you may well know, the values on the Parent Layer are part of a whole and having the Colour Picker Tool to take a sample from the Parent Layer and not the Mask you are working on results in picking an unwanted value when I am actually trying to pick a shade of gray that has already been used on said mask
In the long run this means that for me to be able to take the desired sample, I must go to the colour wheel / sliders manually and try to guess what that value was or take my attention away from the whole and having to isolate the mask to get the value that I want.
If the colour picker could be adjusted in a way that it picks the shades of gray FROM the mask while working INSIDE the mask it could certainly enhance workflow speed and consistency.
Thanks for the attention and time to read this request. Cheers!