Options => Settings => Display; tab "Traffic".
Top check mark on the right is to put the labels on/off. Underneeth that one 6 check marks for what you would like to see, and a drop down box for the colour, and one for how speedy you would like to change if more than one field is displayed.
I have a screenshot of it, but that does not realy go into the gallery I think. Shall I throw it into the sandpit?
Cheers,
EJ