SwiftUI NavigationBarTitle background color in the simulator has changed for no apparent reason?

Just learning swift and swiftUI. Have several very simple apps which were working as expected. Then all apps which use
 .navigationBarTitle("Title", displayMode: .inline) changed to show a bright yellow background in the title bar area.


I'm seeing the same as I work my way through a series of tutorials.

I have to assume its a bug in SwiftUI?
I'm glad to hear this isn't just me, I've spent the last couple hours trying to figure out where I set the tint to yellow?
I also have 4 hours trying to figure this out.
Do you know if it is a bug or an expected behavior?


There is a workaround here (I did not test):
https://developer.apple.com/forums/thread/669459
SwiftUI NavigationBarTitle background color in the simulator has changed for no apparent reason?
 
 
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