I'm having some trouble with what I think is additive or blending with the background
Image:

Notice the two red and one blue circles. They blend in black areas with the background. These are .png sprites from photoshop with a MASKED flag applied. The background is a .jpg sprite with normal color flags.
Image:

Notice the two red and one blue circles. They blend in black areas with the background. These are .png sprites from photoshop with a MASKED flag applied. The background is a .jpg sprite with normal color flags.