I've just bought a Nuvi 2455 and the available map themes are very limited - it's like going from "light colored hard to see" to "lighter colored harder to see". I've tried customising the KMTF files but i was not succesful - i'm not whether i was doing it right or not.

DOes anyone have a good nuvi map theme .KMTF file that has great contrast for daylight ? the current options have the roads in light colors so the roads just disappear into the light colored background in bright conditions in the car - I love my TOMTOMs colors and they way the TOMTOMs colors can be edited......