- From ArcMap, click Customize > Style Manager.
- Click the Hatches folder in the style tree in the ESRI style file (.style) in which you want to create a new hatch style.
- Right-click the open space in the Style contents window, point toNew, then click Hatch.
- Set the style’s properties on the Hatch Style Properties dialog box and click OK.
- Name the new hatch style.
- Click Close to close the Style Manager dialog box.