Ping!
The question, “Are objects really the color they seem to us, or is color a property of our eyes and brains?”, was asked in #18.
At least one answer can be provided by a disc with alternating black and white radial lines on it. When spun at the proper speed the eye will interpret the white to black to white stimulation of the eye’s light receptors as color whereas there is actually no color.
Where is the color being created except in the interplay between eye and brain.