One of the reactions to the extreme warfare in World War II was action painting. One of the defining artists was Jackson Pollock's drip painting. It was the breakdown of the traditional paint brush as a tool to flicking paint in swirling patterns. It was paint just defined as pure colors in action on the canvas. The primary movement was from the 1940s - 1960s. Elements of this style are still highly used by many artists to this day. In my own Architectural Abstraction style, I flick paint from the triangles to heighten the tension between control of shape and pure paint splatter. In my Metal Mayhem style, I use pure color combinations into loosely organic geometric shapes.