Hello Bonnie,
You can create your custom color settings for the tabs just like the above structure, however, you need to add styles to make changes.
Here is a quick fix.
Add the following CSS inside the additional CSS section of your customizer and save the changes;
ul.ss_tabs.red .ui-tabs-active.ui-state-active {
background-color: #e8232a !important;
color: #ffffff !important;
}
#lavish_tabs_left.ui-tabs .ui-tabs-nav li.ui-tabs-active:after {
border-left: 15px solid #e8232a!important;
}
Let us know.
Thanks!