In its frozen state, the Iceman's deep caramel skin had a dignified luster, reminiscent of a medieval figure painted in egg tempera.

在冰冻的状态下，冰人焦糖色的皮肤散发出高贵的光芒。令人联想起画在蛋彩画上的一位中世纪的人物。

youdao

Certain pigment colours were painted on to dry plaster using tempera (where egg yolk is used to fix the pigment).

使用蛋彩画颜料(内含可以定色的蛋黄)在干石膏上绘出了特定颜色。

youdao

Egg Tempera, which uses egg yolk to bind pigments, dates back to Egyptian times but became largely obsolete after oil paints appeared in the Renaissance.

BBC: Egg artist wins ?15,000 art prize