In reviewing the photo in "The Bristol Fighter" by J.M. Bruce, Vintage Warbirds No.4, Arms and Armour Press, 1985, pages 22 and 23. The top surfaces appear to be painted white. The sides of the fuselage, fin and rudder are some mid color, possibly green. There is a contrast between the side color and the crossfields on the fuselage and rudder.
PS. Anything new?