Hello,
Unfortunately, this is currently not available out of the Box and will require some customizations. We currently do not provide Customization related Support according to the Item Support Policy: https://themeforest.net/page/item_support_policy . You can consider using the following CSS Code:
#header:not(.sticky-header) { height: 160px !important; }
#header-wrap.dark { background-color: #333; }
#header-wrap.dark #primary-menu { border-top: none !important; }
#header-wrap.dark #primary-menu > .container > ul > li > a,
#header-wrap.dark #top-search a,
#header-wrap.dark #top-cart a,
#header-wrap.dark #side-panel-trigger a,
#header-wrap.dark #top-account a,
.dark #top-cart .top-cart-item-desc a,
body.top-search-open #header-wrap.dark #top-search a,
#header-wrap.dark #top-search a:hover,
#header-wrap.dark #top-cart a:hover,
#header-wrap.dark #side-panel-trigger a:hover,
#header-wrap.dark #top-account a:hover,
#header-wrap.dark #top-search form input {
color: #EEE;
text-shadow: 1px 1px 1px rgba(0,0,0,0.1);
}
#header-wrap.dark #top-search form input::-moz-placeholder { color: rgba(255,255,255,0.6); }
#header-wrap.dark #top-search form input:-ms-input-placeholder { color: rgba(255,255,255,0.6); }
#header-wrap.dark #top-search form input::-webkit-input-placeholder { color: rgba(255,255,255,0.6); }
and then use the .dark Class on the #header-wrap Element.
This will definitely work fine. Hope this Helps!
Let us know if we can help you with anything else or if you find any further issues.