The red color for important vehicles looks out of place

Ok this is not feedback for something new in R38, but I was just reminded of it when I saw the boat to Celestis on the overworld map.

I like the fact that the boats, wagons and balloons that take one to important destinations have a distinctive look to them to make them stand out. But for some reason, I find the red color to be jarring. Maybe there is another color combination that would do the same trick, like blue and white or green and white stripes? Perhaps small pennants attached to the vehicles?

Maybe I'm alone with this opinion, and it is not high priority feedback, but I thought I'd mention it.