Background (Variable type) The Background type defines the advanced characteristics of the element background. Color (Variable type) The Color type is used to define the advanced characteristics of a WLanguage color. Icon (Variable type) The Icon type is used to define the advanced characteristics of an icon. Image (Variable type) The Image type is used to define the advanced characteristics of an image. Palette (Variable type) The Palette type is used to define the advanced characteristics of a color palette. Polygon (Variable type) The Polygon type is used to define the points of a polygon. Tiff (Variable type) The Tiff type is used to define the advanced characteristics of a TIFF image.