Mix color, mix in the tray. To prevent the drop on the floor. And mixing colors to wear ppe such as safety glasses or face shield. To protect the paint. And thinner it gets into the eyes.
Color combinations, mixing inside the tray to prevent the six-drop on the floor and mixed colors will be required to wear PPE, such as safety glasses or freckles fronting to prevent paint and thinner splash into the eyes.
The Mixed Color, mix in tray to prevent the six fall on the floor, and the mixed color will need to wear PPE such as safety glasses or a cover-up to protect the color and thinner splashing in a box