Design and visualize microtonal scales and play them in your web browser. Export your scales for use with VST instruments. Convert Scala files to various tuning formats.
An additional big clue for y'all: in my research toward what would become "tuning space visualizer", I found that using pure 50% gray or a slightly warmed sepia-gray background field provides the most options for using both black and white, and colors to encode additional information. More "headroom" for contrast both lighter and darker.
Scott Dakota