Kolam - a term used in South India (specifically tamilnadu/Kerala) for drawings on the floor in temples & homes. Surprised to see the same usage in the posted article. Wiki points me to more details - https://en.wikipedia.org/wiki/Kolam

Why the surprise? The first sentence is "Kolam is a South Indian heritage folk art, a line drawing that creates winding, interwoven geometric patterns over a two-dimensional dot-grid structure. "