If you’re getting bored of the default theme in your Office desktop apps, you can change the color and background to give it a more personalized feel. It’s simple and only requires a few simple steps, so let’s get to it.
Changing the Office Color Theme via App Options
By default, Office uses what it calls the “Colorful” theme. This theme gives the title bar the color of its respective app. For example, Word’s is blue, Excel’s is green, PowerPoint’s is red, and so on. Additionally, it gives you a standard light gray background and ribbon, and a white content area.
You can change the theme from inside any Office application, and those changes are made throughout all of your Office apps.
First, open any Office application. We’ll be using Word in this example.
Click the “File” tab at the top-left of the ribbon.
A pane will appear on the left side with several different options. At the very bottom of the pane, select “Options.”
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Source: How-To Geek
