diff --git a/docs/02-setup-main-game/05-main-scene/14-setup-sprite-frame-provider.md b/docs/02-setup-main-game/05-main-scene/14-setup-sprite-frame-provider.md
index 967e3b3..af1d435 100644
--- a/docs/02-setup-main-game/05-main-scene/14-setup-sprite-frame-provider.md
+++ b/docs/02-setup-main-game/05-main-scene/14-setup-sprite-frame-provider.md
@@ -115,7 +115,7 @@ graph TD
     class SW specialWin
 
     %% Adjust node spacing
-    linkStyle default stroke-width:4px
+    linkStyle default stroke-width:4px,stroke:#ff0000
 ```
     ![Type Names](../img/05-main-scene/special-win-type-name.png)