STYLESMANAGER (Command) Find:
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 Objects."
Open the Plot Style Table Editor with any of the following methods:
The Plot Style Table Editor includes two tabs.