You can change an arrow style in either the Dimension PropertyManager or the Dimension Properties dialog box.
In the Dimension PropertyManager, under Witness/Leader Display, select a style from the list.
In the Dimension Properties dialog box, under Arrow style, select or clear Use document's style.
Select to use the style in Dimensions Options.
Clear to choose a new style from the lists.
Two lists of arrow styles appear in the Dimension Properties dialog box. You can choose separate styles for each arrow when there are two arrows for a dimension. This feature supports the JIS dimensioning standard. Two lists appear in the Dimension PropertyManager only when separate styles are specified by the dimensioning standard.