changed xilica node colors (black on white to match the brand)

nodes/xilica-command.html

@@ -1,7 +1,7 @@
 <script type="text/javascript">
 RED.nodes.registerType('xilica-command', {
   category: 'Xilica',
-  color: '#D8E7FF',
+  color: '#000000',
   defaults: {
     name: { value: "" },
     connection: { value: "", type: "xilica-connection", required: true },
@@ -63,4 +63,3 @@ RED.nodes.registerType('xilica-command', {
   </ul>
   <p>The node automatically appends the required carriage return and waits for the response. When parsing is enabled, it returns an object (or array of objects) describing values, notifications, OK and error responses. When disabled, it returns the raw response lines as a single string.</p>
 </script>
-

nodes/xilica-interval.html

@@ -1,7 +1,7 @@
 <script type="text/javascript">
 RED.nodes.registerType('xilica-interval', {
   category: 'Xilica',
-  color: '#D8E7FF',
+  color: '#000000',
   defaults: {
     name: { value: "" },
     interval: { value: 100 }
@@ -37,4 +37,3 @@ RED.nodes.registerType('xilica-interval', {
   <p>On each input message, the node sets <code>msg.payload</code> to <code>INTERVAL &lt;value&gt;</code>. Wire the output into a <code>xilica-command</code> node to send it over TCP.</p>
   <p>You can override the configured interval by setting <code>msg.interval</code> on the incoming message.</p>
 </script>
-

nodes/xilica-listen.html

@@ -1,7 +1,7 @@
 <script type="text/javascript">
 RED.nodes.registerType('xilica-listen', {
   category: 'Xilica',
-  color: '#D8E7FF',
+  color: '#000000',
   defaults: {
     name: { value: "" },
     rules: { value: [] }
@@ -142,4 +142,3 @@ RED.nodes.registerType('xilica-listen', {
   </ul>
   <p>Attach a Debug node after this node to inspect live updates for the selected controls.</p>
 </script>
-

nodes/xilica-ping.html

@@ -1,7 +1,47 @@
 <script type="text/javascript">
+// Global styling for Xilica nodes: black background, white text
+(function() {
+  var css = '' +
+    '.red-ui-palette-node[data-palette-type="xilica-ping"],' +
+    '.red-ui-palette-node[data-palette-type="xilica-command"],' +
+    '.red-ui-palette-node[data-palette-type="xilica-interval"],' +
+    '.red-ui-palette-node[data-palette-type="xilica-subscribe"],' +
+    '.red-ui-palette-node[data-palette-type="xilica-listen"]{' +
+      'background-color:#000000 !important;' +
+      'color:#ffffff !important;' +
+    '}' +
+    '.red-ui-flow-node[data-type="xilica-ping"],' +
+    '.red-ui-flow-node[data-type="xilica-command"],' +
+    '.red-ui-flow-node[data-type="xilica-interval"],' +
+    '.red-ui-flow-node[data-type="xilica-subscribe"],' +
+    '.red-ui-flow-node[data-type="xilica-listen"]{' +
+      'fill:#000000 !important;' +
+    '}' +
+    '.red-ui-flow-node[data-type="xilica-ping"] .red-ui-flow-node-label,' +
+    '.red-ui-flow-node[data-type="xilica-command"] .red-ui-flow-node-label,' +
+    '.red-ui-flow-node[data-type="xilica-interval"] .red-ui-flow-node-label,' +
+    '.red-ui-flow-node[data-type="xilica-subscribe"] .red-ui-flow-node-label,' +
+    '.red-ui-flow-node[data-type="xilica-listen"] .red-ui-flow-node-label,' +
+    '.red-ui-flow-node[data-type="xilica-ping"] text,' +
+    '.red-ui-flow-node[data-type="xilica-command"] text,' +
+    '.red-ui-flow-node[data-type="xilica-interval"] text,' +
+    '.red-ui-flow-node[data-type="xilica-subscribe"] text,' +
+    '.red-ui-flow-node[data-type="xilica-listen"] text{' +
+      'fill:#ffffff !important;' +
+      'color:#ffffff !important;' +
+    '}';
+
+  if (typeof document !== "undefined") {
+    var styleEl = document.createElement('style');
+    styleEl.type = 'text/css';
+    styleEl.appendChild(document.createTextNode(css));
+    document.head.appendChild(styleEl);
+  }
+}());
+
 RED.nodes.registerType('xilica-ping', {
   category: 'Xilica',
-  color: '#D8E7FF',
+  color: '#000000',
   defaults: {
     name: { value: "" }
   },
@@ -22,4 +62,3 @@ RED.nodes.registerType('xilica-ping', {
 <script type="text/x-red" data-help-name="xilica-ping">
   <p>Simple test node that returns a fixed payload to confirm the Xilica nodes module is installed.</p>
 </script>
-

nodes/xilica-subscribe.html

@@ -1,7 +1,7 @@
 <script type="text/javascript">
 RED.nodes.registerType('xilica-subscribe', {
   category: 'Xilica',
-  color: '#D8E7FF',
+  color: '#000000',
   defaults: {
     name: { value: "" },
     action: { value: "subscribe" },