Hi.
Seems I forgot to mention that I have spent some 2 years at Herdla researching the airfield's history and helped start the museum there (
http://www.museumsnett.no/herdlamuseum/).
I know the place intimately. There was very little forest there during the war, and certainly not near any dispersal area. So those two photos were not taken at Herdla, I am 100 % sure.
The "Chevron 3" marking you referred to was of an aircraft from Stab IV./JG 5 taken in Denmark (befoe transfer to Norway) and the marking was completely diferent from the one we're discussing here, with the Chevron (+bar) marking ahead of the fuselage Balkenkreuz and the number 3 (which was also coloured, perhaps green) behind.
Regard dust turning the bands into grey, all such bands of JG 5 190s that I have seen are very clear. Remember that these aircraft saw little use at the end and weere maintained in top condition up till the surrender.
Regards,
Kjetil