On our testbead/sandbox WordPress multisite server (version 4.4) I have
installed (and update to most current) the Vantage theme and Page Builder.
The Documentation at https://siteorigin.com/vantage-documentation/customizations/menu/ says in part:
To adjust the menu colors, navigate to Appearance > Customize > Theme Design > Menu. Set the color by clicking on the “Select Color” button next to each setting respectively.
But when I go to Appearance > Customize there is no “Theme Design” to select.
Apologies, we should clarify this a little more. There’s a note on the parent customization page, but this feature is only available in Vantage Premium.
If you’d like to make these changes without Vantage Premium then you can consider using our plugin called SiteOrigin CSS.