I have an icon question. I have found several sites with the meaning of colors in icon, but they never mention the pink we see in some icons. It doesn't seem to be a color used a lot in the first millenium though. Where did it come from, and is there any meaning to it or it was just "fashionable" somewhere and become a stylistic thing?
Pink, as in salmon pink, was used from time to time mainly in Russian icons (less commonly in Greek icons) as a highlight color on the underside of angels' wings, instead of the more common blue and white tones. It calls to mind the light of dawn, while the more common blue suggests heaven. Often, pairs of angels are painted in complementary colors: one angel has pink highlights on his wings, the other blue. One angel wears, say, a red mantle over a green tunic, the other a green mantle over a red tunic.
A more rosy pink, is frequently seen as a garment color in the frescoes of some of the ancient Serbian monasteries and churches. I am not sure whether this is the original shade, or whether it is the result of alteration of pigments due to aging or atmospheric effects.
Colors are generally chosen for their symbolic value, but there is also some scope for creativity, as long as it does not override any established symbolic conventions, such as the red and blue garments of Christ and the Mother of God. In the past, the range of colors an iconographer used was also influenced by the local availability of certain pigments and ores, and certain iconographic schools or regions became known for their use of certain distinctive colors, such as the sage green of Pskov, and the vermilion of Novgorod.