That makes no sense on how we get gradient colors from a section of one color than a section of another. There must be a melt zone inside the palette 2 to create these gradual colors. The nozzle does not mix UNLESS multiple filaments go into the hot zone together. That is the only way we can achieve new colors is by mixing the filaments. not a binary red than yellow then red. Because we will see red and yellow and red in our prints rather than orange. Because nozzles hold a very tiny amount of filament and surely not enough to mix sections of filament. Not even the diamond hotend has a melt zone that big.