Web planner cannot handle alternative colors
Create a track in the app. Change the appearance to something custom (different color, differen track with) and sync to cloud.
The web planner shows the track, but without the appropriate color and when you open the track in the planner, change it and save it, the web interface does not know where the track came from. You have to select the folder again and a copy is saved with the same name to the same folder.