Square kufi
Quadratkufi , also called Bannai , is a font used in Islamic calligraphy . It is mainly used in Iran for building inscriptions.
It is a kind of angular Kufi - font , characterized by geometric shapes such as squares , diamonds , rectangles , parallel and distinguished intersecting lines. The basis of the Bannai script is the horizontal and vertical direction of the lines, which always have the same thickness and completely fill the geometric shape.
The new Iranian national flag shows the words Allahu Akbar in this form.
