Update changed background color to black

I just got the Dawn Ghostery update 2022.3.1 (Windows 10). With the update my browser background got changed to black. I checked the Dawn settings and the colors are still set for
Text: black
Background: white

How do I change the background back to white again? This happened on a previous update and I couldn’t fix it until I received a different update.

Thanks for your help.

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update:

I got the same update on a different pc with windows 11 instead of 10 and the background didn’t change. Why?