feat: Add support for dark mode node icons and colors (#9412)

Co-authored-by: Giulio Andreini <g.andreini@gmail.com>

packages/nodes-base/nodes/WorkflowTrigger/WorkflowTrigger.node.ts

@@ -13,6 +13,7 @@ export class WorkflowTrigger implements INodeType {
 		displayName: 'Workflow Trigger',
 		name: 'workflowTrigger',
 		icon: 'fa:network-wired',
+		iconColor: 'orange-red',
 		group: ['trigger'],
 		version: 1,
 		description: 'Triggers based on various lifecycle events, like when a workflow is activated',