Why is the bittorrent 7.2 logo purple?

[IsaacTerwilliger]

when i downloaded the new bittorrent 7.2 the icon is purple and i would like to know why and also if i can change it to green.
It works exactly the same as the origional bittorrent it just has a purple logo

 

[Unregistered]

It means that a port is blocked. Example : port 3606 is being blocked by : "Something"
Most likely that something is a firewall.
Or a virus