If the plot style table is attached to a layout or the Model tab, and you change
a plot style, any objects that use that plot style are affected. If the plot style
table is color-dependent, the file extension is CTB. If the plot style table is named,
the file extension is STB. For information, see “Use Plot Styles to Control Plotted
Objectsâ€‌.

Open the Plot Style Table Editor with any of the following methods:

• Double-click a CTB or STB file in the Plot Style Manager.
• Right-click a CTB or STB file in the Plot Style Manager, and then choose Open from
  the shortcut menu.
• Choose Plot Style Table Editor from the Finish screen in the Add Plot Style Table
  wizard.
• In the Page Setup dialog box under Plot Style Table (Pen Assignments), select a plot
  style and click the Edit button.
• In the Current Plot Style and Select Plot Style dialog boxes, choose Editor.

The Plot Style Table Editor includes two tabs.