Another tip for anyone hating the default menu bar that gives you no choice to override the colors/transparency of your wallpaper: install BoringOldMenuBar
Boring Old Menu Bar - Brings back Catalina menu bar in macOS 11. Big Sur
www.publicspace.net
It allows you to select a solid menu bar instead of the default, non-customizable one that comes with macOS.
Personally I wanted the bar to look more solid that the lighter blue macOS generated automatically > I selected Dark Mode > Catalina Dark > Divider Style: Single Pixel (by default). You can even select > Custom (haven't tried it, Catalina Dark perfect for me)
I found it through this
link
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