Different colors in created route, blue and purple?

Question: On the PC, a route was created.

What do the different colors mean / represent?
So i see blue and purple, on and on.

Kurviger snapshot

The meaning of the colors:
blue: route
purple: saved route in the db, this helps to spot differences between your current route and the initially planned route
red: gpx track
green: gpx route
blue dots: gpx waypoint