Texas law allows landowners to mark their property boundaries with purple paint instead of signs or fences to deter trespassing. This practice, codified in 1997, has become a symbol of Texan pride and independence. The use of purple paint signifies ownership and a request for respect of privacy and property rights. It is also viewed as environmentally conscious compared to other methods. This visual cue reflects Texan values, history, and aesthetics of the region.