I don't see anything about a drop in color, just that it has to be red or amber and visible from 500 feet.
§ 46.2-1014. Brake lights.
Every motor vehicle, trailer, or semitrailer, except an antique vehicle not originally equipped with a brake light, registered in the Commonwealth and operated on the highways in the Commonwealth shall be equipped with at least two brake lights of a type approved by the Superintendent. Such brake lights shall automatically exhibit a red or amber light plainly visible in clear weather from a distance of 500 feet to the rear of such vehicle when the brake is applied.
Same thing for the side lights, all it has is the max output of the lights, 6 candlepower.
§ 46.2-1020. Other permissible lights.
Any motor vehicle may be equipped with fog lights, not more than two of which can be illuminated at any time, one or two auxiliary driving lights if so equipped by the manufacturer, two daytime running lights, two side lights of not more than six candlepower, an interior light or lights of not more than 15 candlepower each, and signal lights.
Maybe LIS hasn't been updated yet
