Route Colot

I have an a95 MFD running Lighthouse 19 software with C-Map Charts. I'd like to show the route I am following (the active route) in color. I went through the menus, chose the color (Red), but the active route still displays as black. When I move the display window I sometimes see a flicker of red next to the black line, as if the black line is hiding the red. I also tried a different color (blue) with the same result
How do I color the route so that it stands out?
It would also be nice if the active route were a little wider, or at least bolder, than the other lines on the display