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You can get the black menu bar with the Light Theme if you set a wallpaper that is black at the very top.
This is the one I use and it does the job.
 

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You can get the black menu bar with the Light Theme if you set a wallpaper that is black at the very top.
This is the one I use and it does the job.

But I prefer to use my favorit wallpaper.
 
Edit it then. Add a black bar at the top right of your favourite wallpaper. The area right under the Menu Bar.
 
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