MkII and MkIII Reflector sights

I can across an earlier post (ca. 2019 http://forum.keypublishing.com/showthread.php?92919-Reflector-Gunsight-Type-1-Mk-II) which was tantalising with regards to a question a friend has put to me

QUOTE

I have come across a reference to a special white ring and dot reticle for the British reflector sight Mk.II intended for use by night fighters as the standard orange reticle produced too much glare. Have you heard of anything similar? Also curious if the Free Reflector Gun Sight Mk.III used in gun turrets and on the Mosquito had a similar adaptation. Let me know if you come across anything.

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So the key point is the reticle colour/shape used in night fighting both in bombers and Intruders. Wouold be interesting if anyone has information from the Luftwaffe “NJ” aircraft as well.