You can change the appearance of an individual element
to highlight that particular element.
Procedure
- In the diagram editor, click an element.
- In the Properties view, on the Appearance page,
click Select an existing appearance and click
a theme.
- Optional: Click Apply.
- In the Apply and Save Appearances Settings window,
you can save the appearance and associate it with a theme. You
can also apply the appearance to similar elements by selecting the Apply
to all elements of type check box.
- Click OK.