D Grade Colour

On my profile I am a D grade rider. There are two different colours indicating this, one yellow and the other purple - what does this mean?
Also when I race in the WTRL it has and arrow with a V - what does this mean?

Purple is your women’s category. The other one is the men’s/mixed.

Was that V from a WTRL TTT? If so that’s saying your team was categorised in the Vienna cat.