@media only all and (prefers-color-scheme: dark) {
.highlight .hll { background-color: #49483e }
.highlight .c { color: #75715e } /* Comment */
.highlight .err { color: #960050; background-color: #1e0010 } /* Error */
.highlight .k { color: #66d9ef } /* Keyword */
.highlight .l { color: #ae81ff } /* Literal */
.highlight .n { color: #f8f8f2 } /* Name */
.highlight .o { color: #f92672 } /* Operator */
.highlight .p
<script type="text/x-red" data-template-name="test-node-3"></script>
<script type="text/x-red" data-help-name="test-node-3"></script>
<script type="text/javascript">RED.nodes.registerType('test-node-3',{});</script>