pediatrics and medical informatics from the heart of the midwest

The graphs can use the color names recognized by the major browsers, plus transparent to not draw anything at all. You can specify the colors as red-green-blue triplets, in any of the ways that CSS recognizes: #bc5, #abcdef, rgb(100,255,100), or rgb(50%, 75%, 40%).

rgba colors are also supported to allow for semi-transparent colors. If anyone is interested in hsl colors I can add those as well.