Cambio colore traccia gpx

[Comi_SAE]

Good morning
First of all I wanted to congratulate the application which is really useful and functional.
Unfortunately I can't change the colors of the tracks and I can't find a solution.
In global settings-user interface-colors, I select but don't change to map.
Every time I import a track the color is always green (but it's nowhere to be found).
Can you help me please.
Thanks and good job
Michele