Rated 3 out of 5 stars
I needed some minutes to set the options the way, that all foreground images are being processed. Now it seems to work, but I miss an often needed function: Gamma correction.
So I'll still have to save images and open them in another image tool... sad.
#open source (Kadu Diógenes):
All source files start with the MPL2.0 header - so what exactly do you mean with "to open source this add-on"?