Merge pull request #5518 from node-red/5512-sf-colors

Do not cache subflow colors as each subflow can have its own

packages/node_modules/@node-red/editor-client/src/js/ui/utils.js

@@ -1309,6 +1309,9 @@ RED.utils = (function() {
 
     function getNodeColor(type, def) {
         def = def || {};
+        if (type === 'subflow') {
+            return def.color
+        }
         if (!nodeColorCache.hasOwnProperty(type)) {
             const paletteTheme = RED.settings.theme('palette.theme') || [];
             if (paletteTheme.length > 0) {