sorry i think i might have missed it, so this is for the 3D right? if so it would be the scheme that's responsible for its color,
I believe that you are right, but what is the color code for red? Here is what is in the color.ini. :
;=====================================
; System colors
;=====================================
hazecolor = 0, 0,0,0
zoomcolor1 = 0, 20,90,90
zoomcolor2 = 0, 30,130,130
zoomcolorfont = 0,190,190,190
carcolorint = 0,0,160,136
carcolorext = 0,0,200,170
carcolorghostint = 0, 150, 150, 150
carcolorghostext = 0, 50, 50, 50
255,0,0, that's RGB