This is the command Im using:
composite -compress none -compose Multiply -gravity Center x.tiff Grid-resized-green.tiff out.tiff
The file "Grid-resized-green.tiff" is uncompressed and of high quality, so I can see all pixels as pure green when I zoom in.
The "out.tiff" is both these pictures "merged", BUT now the the pixels from "Grid-resized-green.tiff" is NOT pure green.. Its lighter/darker etc. corresponding to the background picture (x.tiff).
How to fix this, I dont want a lot of different varieties of green, I want PURE green, only one type of green.

Thanks!