There's a section about it in TFA: "Another conundrum with the modern camouflage design seen during China's Victory Day parade is that the vehicles feature bri

There's a section about it in TFA: "Another conundrum with the modern camouflage design seen during China's Victory Day parade is that the vehicles feature bright blue painted blocks. Why? Some experiments have been done with bluish tones to break up the shape of vehicles against the sky on flat terrain, or for use in icy or snowy areas. “If the vehicles are amphibious then they might have some concealment during their water-based maneuvers, but the trade off for being highly conspicuous on land is not worth having it permanently,” believes Guy Cramer of Hyperstealth Biotechnology. In this case, the blue scheme is likely there for decoration. It certainly made the parade a spectacle, but further muddies the murky world of military camo. —JS"