Plot style tables contain and define plot styles, which can be assigned to objects.
When complete, the wizard produces an STB or CTB file depending on the type of table
you are creating. You can edit these files in the Plot Style Table Editor. To use
your new plot style table, the selected options on the Plot and Publish tab of the
Options dialog box must be appropriate for the type of plot style table (named or
color-dependent) you created.

You can create a plot style table from scratch, use an existing plot style table as
a starting point, or use settings from a PCP, PC2, or CFG file.

You can create either a named plot style table or a color-dependent plot style table.
With a named plot style table, you can add and define plot styles as you like; the
file name has the extension .stb. A color-dependent plot style table creates 255 plot styles based on color; the file
name has the extension .ctb. You can specify whether you want to use a plot style table for new drawings or for
pre-AutoCAD 2000 drawings when they are saved in a later format.