Medieval art encoded moral good and evil as light and dark color

Evidence

Artistically, good and evil were represented by color, often in shadings of light and dark. Pierre Remiet, a French illuminator of the fourteenth century, is well known for this convention. — Sophia Rose Arjana, Muslims in the Western Imagination, 104

Categorization

• XREF: connects to: Medieval Christians justified images as scripture for the unlettered laity