Set cover nav bar background color to dark when scrolling

assets/scss/_styles_project.scss

@@ -29,5 +29,11 @@
         padding-left: 1rem;
         padding-right: 1rem;
     }
-    
 }
+
+/* Keep cover top nav bar with dark background */
+
+.td-navbar-cover {
+    &.navbar-bg-onscroll { background: $dark !important }
+}
+

assets/scss/_variables_project.scss

@@ -15,3 +15,4 @@ $td-enable-google-fonts: false;
 $light: #929292 !default;
 $dark: #333 !default;
 $mobile-width: 767px;
+