There is no need to separate the ribbon signal separately. Pixels can display different colors even when receiving the same signal. Collect a lot of pixels, connect the ribbon signal in one line, and when the player decides the color, you can create 16 different pixel art. However, if want to separate the ribbon signal, can make it 1 pixel but increase the size to 2x2.
In a conventional pixel pack, a 4-bit signal corresponds to 4 pixels. After all, a pixel can only choose two colors. What I want to do is reduce the pixel pack to 1 square instead of 4 squares. When one pixel receives a 4-bit signal, 16 colors can be selected. This will be more useful for drawing pixel art.