Currently screens are VERY limited, so "color channels" would be revolutionary
The Color Gate (The yellow block in the center) has one output and 3 inputs, and is more or less an advanced OR gate, compacting multiple color channels into a small space (If multiple colors are being sent into the Color Gate, it will pick the color of the Color Gate itself)
The Color Channels (pink, green, and purple blocks) can be connected to a screen, either directly or via Color Gate
Screens will now have a second input with a red outline, indicating where color channels will be inputed
Concept is scuffed, but you see the vision right?