public interface CSSColor
This is a string matching the syntax as specified in CSS1, and can be formatted in one of the following ways:
 Note that when working with FacetCharts, it's
 required that colors be specified using the six-digit hex format listed above, rather than any of the others, since the
 Framework needs to perform math on the subfields.  Affected properties include FacetChart.dataColors, and affected methods include  ColorMapper.getColor()