Darken label color in search filter when hovering

app/assets/stylesheets/framework/filters.scss

@@ -152,7 +152,7 @@
   }
 
   .value-container {
-    background-color: $filter-value-selected-color;
+    box-shadow: inset 0 0 0 100px $filtered-search-term-shadow-color;
   }
 }
 

app/assets/stylesheets/framework/variables.scss

@@ -282,6 +282,7 @@ $dropdown-toggle-active-border-color: darken($border-color, 14%);
 /*
 * Filtered Search
 */
+$filtered-search-term-shadow-color: rgba(0, 0, 0, 0.09);
 $dropdown-hover-color: $blue-400;
 
 /*