See
http://koreajoongangdaily.joins.com/new ... Cnewslist2
for more than the excerpts below
North Korea recently changed the color scheme on its fighter jets,
military sources told the JoongAng Ilbo,
in an apparent attempt to improve performance during midair combat.
“We have obtained intelligence that the North has been redesigning its fighter jets since October,” a senior military official said.
“We compared old photos of their jets with newly released photos and confirmed that the colors and designs were entirely different.”
In the past, the North colored its advanced fighter jets of MiG-29s with two tones. The top was painted in a dark green, while the bottom was a sky blue. The two-tone jet was featured in a photograph taken when North Korean leader Kim Jong-un visited the air force’s 1017 unit at the end of January 2012.
South Korean intelligence authorities said the North is also changing the colors of its low-altitude infiltration aircraft, AN-2s, and its silver-colored MiG-23s.
“The drones discovered last year in Paju were sky blue in color with some lighter patches, so that they could not be visually detected from the ground,” another military official said.
“The North probably is changing the colors of its fighter jets for a new purpose.”
The South Korean military said they had also received intelligence that North Korea had developed stealth paint in late 2000.