How do I shade the background of a chart in Excel?
To change color schemes, switch to a different theme. In Excel, click Page Layout, click the Colors button, and then pick the color scheme you want or create your own theme colors.
How do you add a background to an Excel graph?
Click the worksheet that you want to display with a sheet background. Make sure that only one worksheet is selected. On the Page Layout tab, in the Page Setup group, click Background. Select the picture that you want to use for the sheet background, and then click Insert.