Apple iWork '08 - Manual (Page 92)

92 Chapter 2 Getting Started with Numbers
Here are ways to change a chart:
m For quick formatting, use the Format Bar. Select the chart or one of the columns in it
and experiment with the controls in the Format Bar.
Format the text
of the labels.
Add or
remove a
shadow. Format the line
beneath the chart
or column.
Format the background
of the chart or column.