Applies to: ZWCAD Classic; ZWCAD 2015

1. Color-dependent plot style tables (CTB) contain a collection of plot styles based on each of the 255 index colors available in a drawing. True colors and color books are not applicable to color-dependent plot style tables. 
Color-dependent plot style table determines plotting characteristics such as lineweight using an object's color. This plot style plots objects with the same color in the same style. For example, every blue object in a drawing is plotted the same way. While color-dependent plot style table is provided for editing rather than adding or deleting plot styles. There are 256 plot styles in a color-dependent plot style table, one for each color.

2. Named plot style tables (STB) contain a collection of plot styles that you define. They can vary regardless of color. Use Plot Styles

Named plot style tables contain user-defined plot styles. This plot style plots objects based on the plot style assigned to the object rather than the color. The named plot style tables can be assigned to objects or layouts as assigning other properties.