The patch cables change color when you drag them. The color represents the original color of the necessary Doepfer cable. Doepfer cables are color coded by length (at least in 2014 when I build that patch tool).
Oh, I didn't notice! Nice detail. I'd personally prefer a small note next to the cable displaying the centimeter length of that stretch.

It does however look like doepfer use differnt colors than the colors in sketch a patch; http://www.doepfer.de/a100z_e.htm Also the sketch a patch cables seem to have a maximum length, it cycles through colors until they hit black, then stops.


Feature idea for unicorn accounts; Patch cable length calculator. Connect two points on the rack and get a recommended minimum length for the patch cable.


Edit: this issue might find resolution after all. Removing my comment until then.