This post will help you if the Dark Mode is not working in the new Outlook ... set the Office Theme to Black and select the check box next to Never change the message background color.

When Outlook is using the dark theme, you can switch dark mode on and off for the current message using the dark mode toggle button. Click the Switch Background button at the top of the message ...

These directions apply to Windows, Mac, Android, iOS, and web users. How to Switch Outlook to the Dark Theme in Windows ...

This post will show you how to change theme in Outlook ... message by clicking on New Email and navigate to the Options tab. Here, click on Themes and select your desired theme. You can add a ...

Microsoft is adding AI-powered themes to Outlook today. Dubbed “Themes by Copilot,” this AI-powered feature will require a Copilot Pro or business license to add a more personalized look to ...