The use of some of the earliest pigments continues to the present day despite the ongoing development of new colours. The earliest methods combined pigment with waxes or gums, these were largely replaced with egg tempera during the 13th century by Italian painters. Egg tempera produced work with a new subtlety as seen extensively in European church decoration.
From Sienese painting onwards (1290), the artist’s studio system became established. A master painter employed apprentices, training each for many years. The apprentices refined, mixed and ground fresh colour for the Master on a daily basis for the painting in progress.
As world trade increased so did the raw materials for pigment manufacture, in addition gums and resins from around the world also became available to European painters.