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Continue to ChatQuery : How can I map all black pixels in a greyscale image to alpha so that it looks the same over a black background? I have a grayscale image, and I want to make all the black pixels transparent, https://vmapp.org/query/63744/How-Can-I-Map-All-Black-Pixels-In-A-Greyscale-Image-To-Alpha-So-That-It-Looks-The-Same-Over-A-Black-Background-I-Have-A-Grayscale-Image-And-I-Want-To-Make-All-The-Black-Pixels-Transparent/