Feature Request: logarithmic bin limits for color-coding

Please allow for the color bin limits (for color-coding radius, length, area, etc.) to be logarithmically distributed. (Currently linearly distributed. I believe logarithmic should be the default, but having the option would be helpful too. Thank you.

Locate the code that computes color bin limits for radius, length, area, and other color-coded values, then read how the current linear distribution is applied. Implement an optional logarithmic distribution without changing the existing behavior unless the project decides otherwise; done means the affected color-coding modes produce the requested logarithmic limits.

Written by the indexing model from the issue text.