diff --git a/typescripts/preset/preset.tsx b/typescripts/preset/preset.tsx
index b0ac911..84a361d 100644
--- a/typescripts/preset/preset.tsx
+++ b/typescripts/preset/preset.tsx
@@ -273,7 +273,7 @@ gridRoot.render(
     //<React.StrictMode>
     <ErrorBoundary>
         <div style={{ border: '2px solid #6d6c6c', padding: '3px' }}>
-            <Collapsible defaultIsOpen={true} label={Locale('Custom Preset')}>
+            <Collapsible defaultIsOpen={false} label={Locale('Custom Preset')}>
                 <PresetTab></PresetTab>
             </Collapsible>
         </div>