Favorites List Separator Bar Color

Directory Opus 13:

The separator bar in the drop down Favorites List is white, which doesn't show up well with my chosen cyan background. I'd like to change the separator bar to black but can't find the setting. I saw the following old thread, but either I'm too dense or that doesn't help me (Color of Favorite Separator - #6 by Micky).

Either way, can you please just point me to changing the separator bar color to black in the Favorites List?

Preferences / Colors and Fonts / Directory Opus Colors / Menus

Or (if you want to keep use visual styles on there, and affect most menus in the program, not just ones on toolbars):

Preferences / Colors and Fonts / Windows Colors / Menus

Leo, thanks - but I don't see a "Menus" option. I'm using DO 13 and posting in a DO 12 forum - sorry. Is there a difference in the preference settings or am I just missing the entry?? I don't see an option to change the separator color anywhere - including the second option you posted above.

Sorry, I missed the "Toolbars" level in the first example:

For completeness:

Perfect. Thank you for your prompt response Leo.