Entertainment / Literature / Grisaille: Kathleen Scott tells us that, in the elaborate medieval artwork found in illuminated manuscripts, grisaille refers to 'decorative work or illustrative scenes rendered mainly in shades of grey or muted brown, in English 15th-century illustration, often in combination with colours or gold, i.e., figures in a monochrome tone against a coloured background, not common in 15th-century English book illustration' (Scott 372). It is, however, more commmon in continental manuscripts.
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