the only color the bearing lines can have besides black is some shade of green. for some reason that seems to be hardcoded or i just can't find the place to change that...
the other lines i can make any color i want including green but as i've said - they would stay that way even in daylight while the bearing lines become black then.
i should also say that i would need to make the bearing lines relatively bright green as i've tried it with a darker shade and it was just as hard to see as it is now.