You cannot select a different image and theme for each program. The selected background image and theme is applied to all Office programs. The newly selected background image (if any) and theme is applied to the title bar in the currently open Office program. Once you’ve made your changes, click “OK” to accept them and close the Options dialog box. The Colorful theme is a different color in each program, such as blue in Word, green in Excel, and orange in PowerPoint. The Dark Gray and Black themes are now available as dark themes however, the Black theme is only available to Office 365 subscribers. To change the color theme, select an option from the “Office Theme” drop-down list.
If you use a local account in Windows 10, or you’re using an earlier version of Windows, you can access the Office Background feature by signing into your Microsoft account in any Office program, using the “Sign in” link on the right side of the title bar. If you’ve signed in to Windows 10 using your Microsoft account, you should have access to the Office Background option, unless you specifically sign out of Office. ToolPak several times but the Analyze group is nowhere on the Data tab ribbon. The Office Background feature is only available when you are signed into your Microsoft account. These instructions apply to Excel 2010, Excel 2013 and Excel 2016.
If you don’t see a background image on the title and the Office Background drop-down list is not available on the Options dialog box, that means you aren’t signed into your Microsoft account in Office.
