In the middle ages, Byzantine art were usually mosaics and icons. The types of the Byzantine mosaics are typically recognized from several features. First, Byzantine mosaics use reflective glass cubes. Second, Byzantine mosaic surfaces are uneven in order that they spark. Third, Byzantine mosaics are only on the walls due to the irregular surfaces. Fourth, The Byzantine mosaics are in a variety of colours, Fifth, Byzantine mosaics used giant cubes and is stylized designs. Sixth, Byzantine mosaics had abstract blue or gold backgrounds abstracts symbolizing heaven. Architecture.