A color-changing device which includes an enclosure at least a portion of which
is material which is desired to change color. There is also included an illumination
device, such as an LED or collection of LEDs which can illuminate the material.
There can also be included a controller which can take some form of input, such
as from a network, or a sensor, and can convert that input into a signal to control
the illumination. There is also included a method for performing such color change.