If some kindly gent will remind me of what the hog colours represent I shall write it down in large letters and print it and stick it on my forehead so that I don't keep forgetting.
Regards bob
Light Blue (teal?) is track, dark red is roads, dark blue - creeks/rivers, black (I honestly forget) and I think there's another, but thats the basics, hopefully it'll help a bit
political boundaries 0,0,0 Black
railroads 0,255,255 Cyan
major road 255,0,0 Red
road level 2 190,0,0 Dark Red
road level 3 160,0,0 Darker Red
water level 1 0,0,255 Blue
water level 2 0,0,128 Dark Blue