Hi, expo.
The problem is that if you tell the program to separate the colors, it assumes the approach for 'full color', meaning that color is separated into four printer colors -- cyan, red, yellow and black.
The simplest approach is to create two copies of the picture - fish brown and fish blue. Open FishBrown and delete all the parts you want as blue then save it for the brown-ink screen. Do the reverse for the blue plate. This way Corel will see it all as one-color and maintain the gradations.
Please reply if you have any problems.
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