The alchemy of preparing colours is both art and science, for many porcelain paint colours change during firing. Moreover, a great deal of experience is required to correctly estimate the luminosity of a colour like bright red when it is still being applied. Especially when it is used to accentuate lips, fingernails and hair, as in Johanna Künzli’s Winter. The young woman with fiery red hair has elegantly draped her black cape over her head and upper body. And if she didn’t have gleaming red fingernails, we could think she was a Madonna.