So I've got a client who is color-picky. I set up a page with a transparent PNG background, so we could try a bunch of different colors on the fly. But Athualpa seems to be ignoring the background color, and uses just the PNG.
font-family: tahoma, arial, sans-serif;
background: url(/site/wp-content/themes/atahualpa/images/maryback.png) no-repeat top left;