just to explain the change in color choice: the original idea was that different hues would make it easier to distinguish different relationships.

there were two problems with this:

• the first was that there was no system for assigning a hue to an relationship, so the color choices were arbitrary (and could cause confusion. why is this one purple? etc)
• the second was that the same saturation and brightness levels read differently based on the hue. it’s difficult to tell that a dark yellow carries the same information as a dark pink.

the solution was: one hue to represent males (the turquoise) and one to represent females (i will probably go with a pinkish red)

so far, it seems as though the difference in saturation/brightness is enough to tell different relationships apart.