Bister comes from French from the word 'bistre' which stands for brown, hazelnut, dark brown or chocolate brown.
Bister is a color pigment made from the soot and tar of burnt wood or shellac or the ground bark of walnuts and Arabic gum.
A traditional powdered ink in by artists highly appreciated in the colors: red, yellow, green, blue and of course the brown bister.
The powder can easily be dissolved in water. The more pigment, the darker the color. The more water the lighter the color.
Please note that all colours have a brown undertone and are not light-fast.