apply color

src/client/styles/scss/_override-rbt.scss

@@ -22,6 +22,13 @@
     font-weight: 700;
     background-color: inherit;
   }
+  a.active,
+  a:active {
+    background-color: #175fa5;
+    .rbt-highlight-text {
+      color: white;
+    }
+  }
 }
 
 .rbt-input {