Format arrow styles, line weights, and color choices to alter the look of connectors.
Change the look of a connector quickly
-
Select a connector.
-
Select Home > Quick Styles.
-
Select a style you want.
Format a connector
-
Select Home > More.
-
Select a connector.
-
From the Quick Styles menu, select Line and then format what you want:
-
Select Color and choose a color for your line.
-
Select Width to make the line thinner or heavier.
-
Select Begin Arrow type or End Arrow type to change the look of the line endpoints.
Source: Microsoft