want changes to submenu applied to all submenus

For me, this feature does not work. I follow the instructions, as illustrated by the video. The result is still that each menu has its own color scheme for its submenus, and each submenu continues to have its own color scheme for its subsubmenus, and so on. I see no improvement.

I am using 6.64 beta (64 bit).

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For any given toolbar, on some menus it works. On some menus it does not work.