also the germans converted from green/brown to green/mauve to 1. distinguish colors from allied aircraft and prevent confusion. 2. it was tested and found that violet tones are very good for camo, not so apparent when upclose but at a distance they seem to apper earth toned.3. i read elsewhere that the use of blues ,lilacs,pinks and such in german lozenge was due to the fact that the sky does take on these hues at sundown ,that along with the polygon pattern were a sort of early attempt at disruptive cammo. i cant support any of these things its just concepts i picked up here and there from the forum disscussions ,books and online research.