Exquisite decoration on the panels of the entrance portal. Of the decoration, Blair and Bloom write: Above the continuous marble dado, all vertical surfaces, both exterior and interior, are clad in polychrome glazed tile, most of which was replaced in the 1930s on the basis of extant remains. The tile revetment is predominantly blue, except in covered halls, which were later revetted in tiles of cooler, yellowy-green shades ... The entrance portal … is the tour-de-force of the mosque\u27s tile decoration and is entirely executed in tile mosaic in a full palette of colors. The outer edge of the iwan is framed by a wide inscription band with religious texts written in white thuluth script on a dark blue ground. The arch is framed by a triple...