Sallyanne, do you know (have) the filter "script-fu-all-layer-modes"?
Given an image it shows on a montage the effects of each layer mode.
Just an idea...
PS: it doesn't answer your question, but it could be helpful
Given an image it shows on a montage the effects of each layer mode.
Just an idea...
PS: it doesn't answer your question, but it could be helpful