Suggestion: Change or remove the color scheme in the radial histogram

[rhiever]

trafficstars

As discussed here, the rainbow colormap is not ideal for the data visualization in this project. It is likely better to use a uniform color for the radial histogram.

[Eneroth3]

Perhaps the "pies" could be in two alternating shades of the same hue to still convey the center and radial direction. If changed to just a single uniform blob it wouldn't communicate the direction as clearly.