In Byzantine and Medieval art of the Western Middle Ages, much art focused on the expression of subjects about biblical and religious culture, and used styles that showed the higher glory of a heavenly world, such as the use of gold in the background of paintings, or glass in mosaics or windows, which also presented figures in idealized, patterned (flat) forms.
In Byzantine and Medieval art of the Western Middle Ages, a significant portion of art concentrated on the depiction of themes related to biblical and religious culture, and employed techniques that highlighted the greater splendor of a celestial realm, such as the incorporation of gold in the backgrounds of paintings, or glass in mosaics or windows, which also portrayed figures in idealized, patterned (flat) shapes.