diff --git a/Assets/Scripts/InteractionEngine/Gadgets/GadgetBehaviour.cs b/Assets/Scripts/InteractionEngine/Gadgets/GadgetBehaviour.cs
index 57c0ebacd3cbeebd2982c0f6dfcc416775274b95..2c96847470cb283ebca9b4a9bbbed5807da99206 100644
--- a/Assets/Scripts/InteractionEngine/Gadgets/GadgetBehaviour.cs
+++ b/Assets/Scripts/InteractionEngine/Gadgets/GadgetBehaviour.cs
@@ -5,7 +5,6 @@
 using UnityEngine;
 using UnityEngine.Events;
 using UnityEngine.UI;
-using static UIconfig;
 
 
 public class GadgetBehaviour : MonoBehaviour, ISerializationCallbackReceiver
diff --git a/Assets/Scripts/UI/HideUI_mobile.cs b/Assets/Scripts/UI/HideUI_mobile.cs
index 6dc8e19d776412227474451adcb734717ae06d13..face97d01a5249fd56be092a0936009bdb7020ba 100644
--- a/Assets/Scripts/UI/HideUI_mobile.cs
+++ b/Assets/Scripts/UI/HideUI_mobile.cs
@@ -3,7 +3,6 @@
 using UnityEngine.InputSystem;
 using static CommunicationEvents;
 using static UIconfig;
-using static updateMouseCursor;
 
 public class HideUI_mobile : MonoBehaviour
 {
diff --git a/Assets/Scripts/UI/InGame/SwitchScrollUI.cs b/Assets/Scripts/UI/InGame/SwitchScrollUI.cs
index b9b20bcf2aae1f79deb1c145ca2d244c023d1097..2d6c39b947c32a078e722f40158686a7b5697c62 100644
--- a/Assets/Scripts/UI/InGame/SwitchScrollUI.cs
+++ b/Assets/Scripts/UI/InGame/SwitchScrollUI.cs
@@ -1,5 +1,3 @@
-using System.Collections;
-using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Events;
 
diff --git a/Assets/Standard Assets/Utility/AutoMobileShaderSwitch.cs b/Assets/Standard Assets/Utility/AutoMobileShaderSwitch.cs
index db3c18145b6b6e0263df206e343b33e2f793cb5d..e430a2d455510cee4ef301713157d624957ac468 100644
--- a/Assets/Standard Assets/Utility/AutoMobileShaderSwitch.cs	
+++ b/Assets/Standard Assets/Utility/AutoMobileShaderSwitch.cs	
@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using UnityEngine;
 #if UNITY_EDITOR
 using UnityEditor;
diff --git a/Packages/bessw.unity.webview b/Packages/bessw.unity.webview
index b54ce216768ba77511fd87b5c17739232e0c5775..db127971a197c67545531322b0ffc31e97c68c85 160000
--- a/Packages/bessw.unity.webview
+++ b/Packages/bessw.unity.webview
@@ -1 +1 @@
-Subproject commit b54ce216768ba77511fd87b5c17739232e0c5775
+Subproject commit db127971a197c67545531322b0ffc31e97c68c85