Linear Gradients (goes down/up/left/right/diagonally)
Radial Gradients (defined by their center)
Examples
Tessellations
Regular Tesselations
O. Deger, Kubra & Değer, Ali. (2012). An Application of Mathematical Tessellation Method in Interior Designing. Procedia - Social and Behavioral Sciences. 51. 249–256. 10.1016/j.sbspro.2012.08.154.