The era characterized by the illumination of manuscript pages in a cosmopolitan style that is elegant, mannered, and sophisticated, showing realistic details alongside naïve naturalism, is the Gothic era. During this period, paintings were mostly confined to manuscript illuminations and frescoes on church walls. The style often depicted popular legends and love stories, and patterns like Mille de Fleur (thousand flowers) were common, possibly influenced by the Crusades. Stained glass windows were also prominent, designed to fill large stone interiors with warm, glowing colors and to instruct Christians in their faith. The artwork from this era combined both realistic details and a naïve naturalistic approach in their paintings