Clicking on ‘Settings’ would land you on the ‘General’ tab where you would spot the current theme of Microsoft Teams right at the top. Click on ‘Dark’ and see the application changed its shade. As you may already know, Microsoft Teams has dedicated apps for Android and iOS devices. You can easily turn on Dark mode (theme) from their settings.

Open the Teams app on your computer. Click on the three-dot menu next to your Profile icon in the top-right corner of the screen, then click on Settings. Now click on General in the left panel if it isn't already selected. Finally, click on the Dark option under Theme. That’s it, your Microsoft Teams app is now set to a dark theme.

To change this setting in Teams on an iPhone or iPad, first, launch the Microsoft Teams app. When the app opens, tap your profile icon in the top-left corner. Select “Settings” to open the settings menu. Choose “Appearance” from under the “General” section. Now, tap “Dark” to enable dark mode in the app.