Most strobes I've seen here are a simple white. The one exception has been certain government jobs, which have used red for fire, and white (with coded pulses) for other matters.
One issue may be a difference in philosophies: Strobes are not seen by our codes as 'communication devices.' Rather, they have steadily been made more annoying, with a deliberate desire to yse the strobe to 'drive' you out .... rather than just to tell you there's trouble.
