Color bit depth in Jitter

A Jitter matrix in which the cells represent colored pixels—such as a video—normally has four planes of 8-bit (char) data, representing the values of the alpha, red, green, and blue components of the color. If you wanted to reduce the bit depth of that color information to fewer than 8 bits, which would reduce the total number of colors in the image, a simple way to do that is to shift all the bits to the right (so that the least significant bits are lost), then shift them back.