From cab68834927dc45bad13869448ae0355e60553fb Mon Sep 17 00:00:00 2001
From: Alessandro <a@a.a>
Date: Mon, 11 Aug 2025 15:33:56 +0200
Subject: [PATCH] fix default svelte color

---
 packages/svelte/src/lib/store/initial-store.svelte.ts | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/packages/svelte/src/lib/store/initial-store.svelte.ts b/packages/svelte/src/lib/store/initial-store.svelte.ts
index a2d1ea68..702e155e 100644
--- a/packages/svelte/src/lib/store/initial-store.svelte.ts
+++ b/packages/svelte/src/lib/store/initial-store.svelte.ts
@@ -365,7 +365,9 @@ export function getInitialStore<NodeType extends Node = Node, EdgeType extends E
 
     selectNodesOnDrag: boolean = $derived(signals.props.selectNodesOnDrag ?? true);
 
-    defaultMarkerColor: string = $derived(signals.props.defaultMarkerColor ?? '#b1b1b7');
+    defaultMarkerColor: string | null = $derived(
+      signals.props.defaultMarkerColor === undefined ? '#b1b1b7' : signals.props.defaultMarkerColor
+    );
     markers: MarkerProps[] = $derived.by(() => {
       return createMarkerIds(signals.edges, {
         defaultColor: this.defaultMarkerColor,