I have decided to do some experiments with RGB Coefficient to get the same effect as we would with Replace Color. Since we may end up with something that is RGB Coefficient as the standard for color management in the long run of development software. Considering there won't be any old scripts in Fusion 3.
This experiment requires multiple layer objects to obtain their own color at run time, and they must start out being colored pure white.
Stand alone/Mirror download link:
The ZIP file contains a text file that explains information that I have learned about how RGB Coefficient works.
Attached file is the result of my experiment using RGB Coefficient.