Changing the look of a chart
1. In the Chart Setup dialog box, click Styles in the Chart inspector.
Choose a coordinated color theme for data points. If you choose Single color, choose a color for all data series in the chart. Choose a fill style and color for the background or choose Transparent for no fill. If you choose a gradient style, choose the colors you want to blend in the background. Bubble Opacity
(Bubble charts only)
3. If you chose Show legend in the Chart area of the Chart inspector, you can change the following:
6. Click Print or Save as Layout (quick charts) or Done (Layout mode charts) to finish the chart. See Creating quick charts or Creating and editing charts in Layout mode.