Low Contrast Graphics Design
This is the Family Search pedigree chart.
The spokes of the wheel, ie. the lines between grampas and grammas, are almost invisible on my screen. The text is busy, it's hard to separate the various names and dates. I can do it, with some study, but is it neccesary to make the lines a lovely fainting lady lightness? Here's what I would do:
Low-contrast colors have been discussed before: