Mail background colour

Christine0852 wrote:

My mail on my MacBookPro has a black background. How do I reset it to white please?

Yes this option will not be available unless ‚ Dark is preselected in the >System Preferences>General

Then you can make changes in Mai.app>Preferences> uncheck the box obviously

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Christine0852 wrote:

My mail on my MacBookPro has a black background. How do I reset it to white please?

How to use Dark Mode on your Mac - Apple Support

Use a light or dark appearance on your Mac - Apple Support

Does the computer have Dark Mode as the Default Setting. Check in System Preferences >> Desktop & Screen Saver >> Desktop tab and change to Light Mode or Dynamic Mode instead of Dark Mode. - Then test.

Am working in Catalina right now - and do not see anywhere is Apple Mail Preferences an option to make the Preview Panel While vs Black or any colour at all.

Perhaps the Learned Contributor @ Leyroyd. . . and assist here

Mail Preferences > Viewing > Uncheck use dark backgrounds for messages. This will produce white message backgrounds even when the Appearance mode is set to Dark in System Preferences > General.