Update custom.scss

resources/assets/sass/custom.scss

@@ -422,4 +422,16 @@ details summary::-webkit-details-marker {
     color: #08d;
     background: transparent;
     border: 1px solid #08d;
+}
+
+.messages-page .bg-primary.text-white a {
+  color: #fff;
+}
+
+.notification-tooltip .tooltip-inner {
+  font-weight: bold;
+}
+
+.notification-tooltip .arrow::before {
+  border-bottom-color:#dc3545 !important;
 }