Format the Border

Charts are made of Shapes. You can use the Format Ribbon to edit the Border of the Plot Area.

 

6. Try it: Choose a Shape Outline

The Chart on Slide 2 is still selected.
The Chart Tools are available.

Go to
Chart Tools ->Format.

Go to Shape Styles->Shape Outline.
Select a Theme Color.
 

What Do You See? There should be a new Outline around the Plot Area.

 

But wait, there's more!

Chart Tools ->Format->Shape Styles->Shape Outline

Exam 77-883: Microsoft PowerPoint 2010

4. Creating Charts and Tables

4.2. Insert and modify charts: Format a Border