The video demonstrates how to perform split toning in DaVinci Resolve using both traditional methods and a "pro" technique involving a third-party tool. The traditional method involves manually adjusting custom curves to introduce color into the highlights and shadows, a time-consuming and precise process. The pro method utilizes a DCTL plugin called Look DNA to quickly apply film-like color grades and split toning effects, significantly speeding up the workflow. The video compares the speed and flexibility of the two methods, showcasing the efficiency of the plugin.