Applying a custom map to the shatter effect. Using red, yellow, green and blue to define the map's pieces. The effect isn't able to recognize all the boarders of the colors at the same time. Playing with the threshold slider, I can adjust what parts it recognizes and what parts it fails to do so, but not all of them at the same time. Is there better colors to use or maybe a grayscale? Any tips would be helpful. Thanks!