The Defiant was phased out of day operations in August 1940, after it became clear it could not hold its own against German fighters. The one colour illustration I could find of a Defiant painted in the early war scheme of dk earth/dk green/sky was in the Alfred Price book "Battle of Britain", which clearly shows the entire turret, base and framing, painted black.
307 (Polish) Sqn, formed on 5 September 1940, and, according to the Fighter Command order of 30 August, it was meant to be a night fighter squadron, was equipped from the outset with Defiants in the night fighting role. 307 used th