"A common choice is to go darker if the body color is light or mid-toned. If the house is dark, shutters and door rely more on changing up the hue to create the needed contrast." So a pale beige house ...

Shutter Interface, from 1975 ... The result is an infinitely variable combined image. Concurrent with the ever-changing, overlapping color fields is an audio track: a 100-kilocycle tone emanating from ...