A system and method for manipulating image data is disclosed. Icons corresponding to user goals of a first set are displayed within the first screen area, and icons corresponding to user goals of the second set are displayed in the second screen area. The intravascular catheter has an elongated body made for insertion into a blood vessel and connected to a catheter handle. The protector can be an elastic tubular sleeve with a zipper or other attachment means at its lower end running longitudinally to a point one-half to three-quarters of the way up the bottom half of the tube. Properties are then assigned to these selected components according to the desired visual style, and pairs of selected graphical components and corresponding assigned properties for the defined visual style together are grouped together in a class data file that defines the overall appearance for the defined visual style.