When working with charts, you can format fonts to customize their appearance. Font formatting options include font selection, font size, color, and font angle (zero to 315 degrees, in increments of 45 degrees).
You can format fonts by clicking the Format button, 
, which is displayed throughout the tabs located on the Format Chart dialog box.
The Format dialog box enables you to preview your font option selections before returning to the chart. For more information on formatting fonts, see Modifying Font Options.