Because I don't like colorful boxes piled together:
A small gadget that takes boxes of any color and one dye,
outputs dyed boxes of the target color at 8gt.
Silent (except for minor crafter noise when the box color already matches the dye)
Random 8gt clock proof
Note: Since 24w40a, a dyed shulker box can no longer be crafted with the same dye. Therefore, the crafter is filled as shown in the image. If the box is a different color, the crafting succeeds and the box is ejected directly into the hopper below. If the box is already the target color, the crafting fails and the hopper below unlocks to pull the box out.