Hi Eileen,
Thanks for reaching out.
Regretfully, there is no such option to add a border between Sidebar and the Content. To achieve that you need to add a small piece of custom CSS code to Theme Option > CSS.
.x-sidebar {
border-left: 1px solid #cccccc !important;
padding: 20px !important;
}
Remember that the above code will work if copied as it is and don’t conflict with any existing style.
To get more help on that please go through resource.
Please note that the code provided serves only as a guide to help you get started custom coding on your own if there’s no option offered in our theme or the products we bundle.
We do not provide support for custom codes that means we can’t fix it in case it conflicts with something in your site nor will we enhance it.
NOTE: Please mentioned the section for which you want to change the background color.
Hope it helps.
Thanks