Follow the steps outlined below on how to customize the appearance of Microsoft Teams.
[CLICK ON THE IMAGES TO ENLARGE]
1. Click on the three dots located next to your user icon and select Settings.

2. In the settings tab, select Appearance and Accessibility.

3. Click on the drop-down menu under Theme, and select the theme you would like. In this example, we will select Classic.

4. After selecting one of the options, the appearance will change.
