diff --git a/CheatEnabler/FactoryPatch.cs b/CheatEnabler/FactoryPatch.cs
index c5737b5..344950d 100644
--- a/CheatEnabler/FactoryPatch.cs
+++ b/CheatEnabler/FactoryPatch.cs
@@ -233,7 +233,7 @@ public static class FactoryPatch
             }
 
             var labels = matcher.Labels;
-            matcher.Labels = new List<Label>();
+            matcher.Labels = [];
             matcher.Insert(
                 new CodeInstruction(OpCodes.Ldarg_0).WithLabels(labels),
                 new CodeInstruction(OpCodes.Ldfld, AccessTools.Field(typeof(BuildTool), nameof(BuildTool.factory))),
@@ -608,7 +608,7 @@ public static class FactoryPatch
             _portalFrom[v] = number;
             if (!_portalTo.TryGetValue(number, out var set))
             {
-                set = new HashSet<long>();
+                set = [];
                 _portalTo[number] = set;
             }
 
@@ -1166,7 +1166,7 @@ public static class FactoryPatch
                 new CodeMatch(OpCodes.Stfld, AccessTools.Field(typeof(PowerGeneratorComponent), nameof(PowerGeneratorComponent.capacityCurrentTick)))
             );
             var labels = matcher.Labels;
-            matcher.Labels = new List<Label>();
+            matcher.Labels = [];
             matcher.Insert(
                 // if (this.fuelMask == 4)
                 new CodeInstruction(OpCodes.Ldarg_0).WithLabels(labels),
diff --git a/CheatEnabler/TechPatch.cs b/CheatEnabler/TechPatch.cs
index d48e7d7..9540ced 100644
--- a/CheatEnabler/TechPatch.cs
+++ b/CheatEnabler/TechPatch.cs
@@ -123,7 +123,7 @@ public static class TechPatch
         }
         else if (VFInput.alt)
         {
-            UnlockTechRecursive(node.techProto, 10000);
+            UnlockTechRecursive(node.techProto);
         }
     }
 
diff --git a/CompressSave/CompressSave.cs b/CompressSave/CompressSave.cs
index 410dee6..2972aaf 100644
--- a/CompressSave/CompressSave.cs
+++ b/CompressSave/CompressSave.cs
@@ -125,7 +125,7 @@ public class PatchSave
 
     public static void CreateCompressBuffer()
     {
-        const int bufSize = CompressionStream.MB;
+        const int bufSize = CompressionStream.Mb;
         var outBufSize = LZ4Wrapper.CompressBufferBound(bufSize);
         outBufSize = Math.Max(outBufSize, ZstdWrapper.CompressBufferBound(bufSize));
         outBufSize = Math.Max(outBufSize, NoneWrapper.CompressBufferBound(bufSize));
@@ -260,7 +260,7 @@ public class PatchSave
         Stream stream = null;
         if (writeflag && _compressionTypeForSaving == CompressionType.None)
         {
-            stream = ((CompressionStream)_compressionStream).outStream;
+            stream = ((CompressionStream)_compressionStream).OutStream;
         }
         // Dispose need to be done before fstream closed.
         _compressionStream.Dispose();
@@ -378,7 +378,7 @@ public class PatchSave
             case CompressionType.LZ4:
             case CompressionType.Zstd:
                 while (offset > 0)
-                    offset -= _compressionStream.Read(_compressBuffer.outBuffer, 0, (int)offset);
+                    offset -= _compressionStream.Read(_compressBuffer.OutBuffer, 0, (int)offset);
                 return _compressionStream.Position;
             case CompressionType.None:
                 return fileStream.Seek(offset, origin);
diff --git a/CompressSave/I18N.cs b/CompressSave/I18N.cs
index 0a1816b..17f6837 100644
--- a/CompressSave/I18N.cs
+++ b/CompressSave/I18N.cs
@@ -18,10 +18,9 @@ public static class I18N
 
     public static bool Initialized() => _initialized;
     private static int _nextID = 1;
-    private static readonly List<StringProto> StringsToAdd = new();
+    private static readonly List<StringProto> StringsToAdd = [];
     public static void Add(string key, string enus, string zhcn = null, string frfr = null)
     {
-        var strings = LDB._strings;
         var strProto = new StringProto
         {
             Name = key,
diff --git a/CompressSave/PatchUILoadGame.cs b/CompressSave/PatchUILoadGame.cs
index 4888367..76a6088 100644
--- a/CompressSave/PatchUILoadGame.cs
+++ b/CompressSave/PatchUILoadGame.cs
@@ -45,12 +45,14 @@ class PatchUILoadGame
         if (created)
         {
             var rtrans = (RectTransform)__instance.loadSandboxGroup.transform;
-            var pos = rtrans.anchoredPosition3D;
-            rtrans.anchoredPosition3D = new Vector3(pos.x - 230, pos.y, pos.z);
+            var anchoredPosition3D = rtrans.anchoredPosition3D;
+            var pos = anchoredPosition3D;
+            anchoredPosition3D = new Vector3(pos.x - 230, pos.y, pos.z);
             _decompressButton.gameObject.name = "button-decompress";
             rtrans = (RectTransform)_decompressButton.transform;
-            pos = rtrans.anchoredPosition3D;
-            rtrans.anchoredPosition3D = new Vector3(pos.x - 180, pos.y, pos.z);
+            pos = anchoredPosition3D;
+            anchoredPosition3D = new Vector3(pos.x - 180, pos.y, pos.z);
+            rtrans.anchoredPosition3D = anchoredPosition3D;
             _decompressButton.button.image.color = new Color32(0, 0xf4, 0x92, 0x77);
             var textTrans = _decompressButton.transform.Find("button-text");
             var text = textTrans.GetComponent<Text>();
diff --git a/CompressSave/PatchUISaveGame.cs b/CompressSave/PatchUISaveGame.cs
index f96d685..284796b 100644
--- a/CompressSave/PatchUISaveGame.cs
+++ b/CompressSave/PatchUISaveGame.cs
@@ -1,4 +1,3 @@
-using System.Collections.Generic;
 using HarmonyLib;
 using UnityEngine;
 using UnityEngine.UI;
@@ -142,7 +141,7 @@ static class PatchUISaveGame
             var cb = cbctrl.GetComponent<UIComboBox>();
             cb.onSubmit.RemoveAllListeners();
             cb.onItemIndexChange.RemoveAllListeners();
-            cb.Items = new List<string> { "Store".Translate(), "LZ4", "Zstd" };
+            cb.Items = ["Store".Translate(), "LZ4", "Zstd"];
             cb.itemIndex = (int)PatchSave.CompressionTypeForSaves;
             cb.onItemIndexChange.AddListener(()=>
             {
@@ -198,7 +197,7 @@ static class PatchUISaveGame
             var cb = cbctrl.GetComponent<UIComboBox>();
             cb.onSubmit.RemoveAllListeners();
             cb.onItemIndexChange.RemoveAllListeners();
-            cb.Items = new List<string> { "已停用".Translate(), "Store".Translate(), "LZ4", "Zstd" };
+            cb.Items = ["已停用".Translate(), "Store".Translate(), "LZ4", "Zstd"];
             cb.itemIndex = PatchSave.EnableForAutoSaves.Value ? (int)PatchSave.CompressionTypeForAutoSaves + 1 : 0;
             cb.onItemIndexChange.AddListener(() =>
             {
diff --git a/CompressSave/Wrapper/BlackHoleStream.cs b/CompressSave/Wrapper/BlackHoleStream.cs
index ed77d94..cf9cf9d 100644
--- a/CompressSave/Wrapper/BlackHoleStream.cs
+++ b/CompressSave/Wrapper/BlackHoleStream.cs
@@ -5,7 +5,7 @@ namespace CompressSave.Wrapper;
 
 class BlackHoleStream : Stream
 {
-    private long length;
+    private long _length;
 
     public override bool CanRead => true;
 
@@ -13,18 +13,13 @@ class BlackHoleStream : Stream
 
     public override bool CanWrite => true;
 
-    public override long Length => length;
+    public override long Length => _length;
 
     public override long Position { get; set; }
 
-    public BlackHoleStream()
-    {
-
-    }
-
     public override void Flush()
     {
-        ;
+        
     }
 
     public override int Read(byte[] buffer, int offset, int count)
@@ -39,12 +34,13 @@ class BlackHoleStream : Stream
 
     public override void SetLength(long value)
     {
-        length = value;
+        _length = value;
     }
-    public byte[] testBuffer = new byte[1024 * 1024];
+
+    private readonly byte[] _testBuffer = new byte[1024 * 1024];
 
     public override void Write(byte[] buffer, int offset, int count)
     {
-        Array.Copy(buffer, offset, testBuffer, 0, Math.Min(count, testBuffer.Length));
+        Array.Copy(buffer, offset, _testBuffer, 0, Math.Min(count, _testBuffer.Length));
     }
 }
\ No newline at end of file
diff --git a/CompressSave/Wrapper/BufferWriter.cs b/CompressSave/Wrapper/BufferWriter.cs
index 756914f..7d70fec 100644
--- a/CompressSave/Wrapper/BufferWriter.cs
+++ b/CompressSave/Wrapper/BufferWriter.cs
@@ -7,21 +7,21 @@ namespace CompressSave.Wrapper;
 
 public unsafe class BufferWriter : BinaryWriter
 {
-    ByteSpan currentBuffer => doubleBuffer.writeBuffer;
+    private ByteSpan CurrentBuffer => _doubleBuffer.WriteBuffer;
 
-    DoubleBuffer doubleBuffer;
+    private readonly DoubleBuffer _doubleBuffer;
 
-    private Encoding _encoding;
+    private readonly Encoding _encoding;
 
-    private int maxBytesPerChar;
+    private readonly int _maxBytesPerChar;
 
-    byte[] Buffer => currentBuffer.Buffer;
+    private byte[] Buffer => CurrentBuffer.Buffer;
 
-    long SuplusCapacity => endPos - curPos;
+    private long SuplusCapacity => _endPos - _curPos;
 
-    long swapedBytes = 0;
+    private long _swapedBytes;
 
-    public long WriteSum => swapedBytes + curPos - startPos;
+    public long WriteSum => _swapedBytes + _curPos - _startPos;
 
     public override Stream BaseStream => _baseStream;
 
@@ -29,16 +29,16 @@ public unsafe class BufferWriter : BinaryWriter
     {
         if (chars == null)
         {
-            throw new ArgumentNullException("chars");
+            throw new ArgumentNullException(nameof(chars));
         }
         byte[] bytes = _encoding.GetBytes(chars, index, count);
         Write(bytes);
     }
 
-    byte* curPos;
-    byte* endPos;
-    byte* startPos;
-    private Stream _baseStream;
+    private byte* _curPos;
+    private byte* _endPos;
+    private byte* _startPos;
+    private readonly Stream _baseStream;
 
     public BufferWriter(DoubleBuffer doubleBuffer, CompressionStream outStream)
         : this(doubleBuffer, new UTF8Encoding(encoderShouldEmitUTF8Identifier: false, throwOnInvalidBytes: true), outStream)
@@ -46,34 +46,34 @@ public unsafe class BufferWriter : BinaryWriter
 
     }
 
-    BufferWriter(DoubleBuffer buffer , UTF8Encoding encoding, CompressionStream outStream) : base(Stream.Null, encoding)
+    private BufferWriter(DoubleBuffer buffer , UTF8Encoding encoding, CompressionStream outStream) : base(Stream.Null, encoding)
     {
         _baseStream = outStream;
-        swapedBytes = 0;
-        doubleBuffer = buffer;
+        _swapedBytes = 0;
+        _doubleBuffer = buffer;
         RefreshStatus();
         _encoding = encoding;
-        maxBytesPerChar = _encoding.GetMaxByteCount(1);
+        _maxBytesPerChar = _encoding.GetMaxByteCount(1);
     }
 
-    void SwapBuffer()
+    private void SwapBuffer()
     {
-        currentBuffer.Position = 0;
+        CurrentBuffer.Position = 0;
 
-        currentBuffer.Length = (int)(curPos - startPos);
-        swapedBytes += currentBuffer.Length;
-        doubleBuffer.SwapBuffer();
+        CurrentBuffer.Length = (int)(_curPos - _startPos);
+        _swapedBytes += CurrentBuffer.Length;
+        _doubleBuffer.SwapBuffer();
         RefreshStatus();
     }
 
-    void RefreshStatus()
+    private void RefreshStatus()
     {
-        startPos = (byte*)Unsafe.AsPointer(ref Buffer[0]);
-        curPos = startPos;
-        endPos = (byte*)Unsafe.AsPointer(ref Buffer[Buffer.Length - 1]) + 1;
+        _startPos = (byte*)Unsafe.AsPointer(ref Buffer[0]);
+        _curPos = _startPos;
+        _endPos = (byte*)Unsafe.AsPointer(ref Buffer[Buffer.Length - 1]) + 1;
     }
 
-    void CheckCapacityAndSwap(int requiredCapacity)
+    private void CheckCapacityAndSwap(int requiredCapacity)
     {
         if (SuplusCapacity < requiredCapacity)
         {
@@ -84,7 +84,7 @@ public unsafe class BufferWriter : BinaryWriter
     public override void Write(byte value)
     {
         CheckCapacityAndSwap(1);
-        *(curPos++) = value;
+        *(_curPos++) = value;
     }
 
     public override void Write(bool value) => Write((byte)(value ? 1 : 0));
@@ -115,43 +115,43 @@ public unsafe class BufferWriter : BinaryWriter
 
     public override void Write(sbyte value) => Write((byte)value);
 
-    public override void Write(byte[] _buffer) => Write(_buffer, 0, _buffer.Length);
+    public override void Write(byte[] buffer) => Write(buffer, 0, buffer.Length);
 
 
-    public override void Write(byte[] _buffer, int index, int count)
+    public override void Write(byte[] buffer, int index, int count)
     {
-        if (_buffer == null)
+        if (buffer == null)
         {
-            throw new ArgumentNullException("buffer");
+            throw new ArgumentNullException(nameof(buffer));
         }
-        fixed (byte* start = _buffer)
+        fixed (byte* start = buffer)
         {
             byte* srcPos = start + index;
             while (SuplusCapacity <= count)
             {
                 int dstSuplus = (int)SuplusCapacity;
                 //Array.Copy(_buffer, index + writed, Buffer, Position, SuplusCapacity);
-                Unsafe.CopyBlock(curPos, srcPos, (uint)dstSuplus);
+                Unsafe.CopyBlock(_curPos, srcPos, (uint)dstSuplus);
                 count -= dstSuplus;
                 srcPos += dstSuplus;
-                curPos = endPos;
+                _curPos = _endPos;
                 SwapBuffer();
             }
-            Unsafe.CopyBlock(curPos, srcPos, (uint)count);
-            curPos += count;
+            Unsafe.CopyBlock(_curPos, srcPos, (uint)count);
+            _curPos += count;
         }
     }
 
-    public unsafe override void Write(char ch)
+    public override void Write(char ch)
     {
         if (char.IsSurrogate(ch))
         {
             throw new ArgumentException("Arg_SurrogatesNotAllowedAsSingleChar");
         }
 
-        CheckCapacityAndSwap(maxBytesPerChar);
+        CheckCapacityAndSwap(_maxBytesPerChar);
 
-        curPos += _encoding.GetBytes(&ch, 1, curPos, (int)SuplusCapacity);
+        _curPos += _encoding.GetBytes(&ch, 1, _curPos, (int)SuplusCapacity);
     }
 
     //slow
@@ -159,24 +159,24 @@ public unsafe class BufferWriter : BinaryWriter
     {
         if (chars == null)
         {
-            throw new ArgumentNullException("chars");
+            throw new ArgumentNullException(nameof(chars));
         }
         byte[] bytes = _encoding.GetBytes(chars, 0, chars.Length);
         Write(bytes);
     }
 
-    public unsafe override void Write(double value)
+    public override void Write(double value)
     {
         CheckCapacityAndSwap(8);
         ulong num = (ulong)(*(long*)(&value));
-        *(curPos++) = (byte)num;
-        *(curPos++) = (byte)(num >> 8);
-        *(curPos++) = (byte)(num >> 16);
-        *(curPos++) = (byte)(num >> 24);
-        *(curPos++) = (byte)(num >> 32);
-        *(curPos++) = (byte)(num >> 40);
-        *(curPos++) = (byte)(num >> 48);
-        *(curPos++) = (byte)(num >> 56);
+        *(_curPos++) = (byte)num;
+        *(_curPos++) = (byte)(num >> 8);
+        *(_curPos++) = (byte)(num >> 16);
+        *(_curPos++) = (byte)(num >> 24);
+        *(_curPos++) = (byte)(num >> 32);
+        *(_curPos++) = (byte)(num >> 40);
+        *(_curPos++) = (byte)(num >> 48);
+        *(_curPos++) = (byte)(num >> 56);
     }
 
     //slow
@@ -195,15 +195,15 @@ public unsafe class BufferWriter : BinaryWriter
     public override void Write(short value)
     {
         CheckCapacityAndSwap(2);
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
     }
 
     public override void Write(ushort value)
     {
         CheckCapacityAndSwap(2);
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
     }
 
 
@@ -213,56 +213,56 @@ public unsafe class BufferWriter : BinaryWriter
         {
             SwapBuffer();
         }
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
-        *(curPos++) = (byte)(value >> 16);
-        *(curPos++) = (byte)(value >> 24);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)(value >> 16);
+        *(_curPos++) = (byte)(value >> 24);
     }
 
     public override void Write(uint value)
     {
         CheckCapacityAndSwap(4);
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
-        *(curPos++) = (byte)(value >> 16);
-        *(curPos++) = (byte)(value >> 24);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)(value >> 16);
+        *(_curPos++) = (byte)(value >> 24);
     }
 
 
     public override void Write(long value)
     {
         CheckCapacityAndSwap(8);
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
-        *(curPos++) = (byte)(value >> 16);
-        *(curPos++) = (byte)(value >> 24);
-        *(curPos++) = (byte)(value >> 32);
-        *(curPos++) = (byte)(value >> 40);
-        *(curPos++) = (byte)(value >> 48);
-        *(curPos++) = (byte)(value >> 56);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)(value >> 16);
+        *(_curPos++) = (byte)(value >> 24);
+        *(_curPos++) = (byte)(value >> 32);
+        *(_curPos++) = (byte)(value >> 40);
+        *(_curPos++) = (byte)(value >> 48);
+        *(_curPos++) = (byte)(value >> 56);
     }
 
     public override void Write(ulong value)
     {
         CheckCapacityAndSwap(8);
-        *(curPos++) = (byte)value;
-        *(curPos++) = (byte)(value >> 8);
-        *(curPos++) = (byte)(value >> 16);
-        *(curPos++) = (byte)(value >> 24);
-        *(curPos++) = (byte)(value >> 32);
-        *(curPos++) = (byte)(value >> 40);
-        *(curPos++) = (byte)(value >> 48);
-        *(curPos++) = (byte)(value >> 56);
+        *(_curPos++) = (byte)value;
+        *(_curPos++) = (byte)(value >> 8);
+        *(_curPos++) = (byte)(value >> 16);
+        *(_curPos++) = (byte)(value >> 24);
+        *(_curPos++) = (byte)(value >> 32);
+        *(_curPos++) = (byte)(value >> 40);
+        *(_curPos++) = (byte)(value >> 48);
+        *(_curPos++) = (byte)(value >> 56);
     }
 
-    public unsafe override void Write(float value)
+    public override void Write(float value)
     {
         CheckCapacityAndSwap(4);
         uint num = *(uint*)(&value);
-        *(curPos++) = (byte)num;
-        *(curPos++) = (byte)(num >> 8);
-        *(curPos++) = (byte)(num >> 16);
-        *(curPos++) = (byte)(num >> 24);
+        *(_curPos++) = (byte)num;
+        *(_curPos++) = (byte)(num >> 8);
+        *(_curPos++) = (byte)(num >> 16);
+        *(_curPos++) = (byte)(num >> 24);
     }
 
 
@@ -271,7 +271,7 @@ public unsafe class BufferWriter : BinaryWriter
     {
         if (value == null)
         {
-            throw new ArgumentNullException("value");
+            throw new ArgumentNullException(nameof(value));
         }
         byte[] bytes = _encoding.GetBytes(value);
         Write7BitEncodedInt(bytes.Length);
@@ -279,7 +279,7 @@ public unsafe class BufferWriter : BinaryWriter
     }
 
 
-    protected new void Write7BitEncodedInt(int value)
+    private new void Write7BitEncodedInt(int value)
     {
         uint num;
         for (num = (uint)value; num >= 128; num >>= 7)
diff --git a/CompressSave/Wrapper/BufferedStream.cs b/CompressSave/Wrapper/BufferedStream.cs
deleted file mode 100644
index 301049b..0000000
--- a/CompressSave/Wrapper/BufferedStream.cs
+++ /dev/null
@@ -1,117 +0,0 @@
-namespace CompressSave.Wrapper;
-
-//public class BufferedFileStream : FileStream
-//{
-//    public override bool CanTimeout => base.CanTimeout;
-
-//    public override int ReadTimeout { get => base.ReadTimeout; set => base.ReadTimeout = value; }
-//    public override int WriteTimeout { get => base.WriteTimeout; set => base.WriteTimeout = value; }
-
-//    public override long Position { get => base.Position; set => base.Position = value; }
-
-//    public override SafeFileHandle SafeFileHandle => base.SafeFileHandle;
-
-//    public override IAsyncResult BeginRead(byte[] array, int offset, int numBytes, AsyncCallback userCallback, object stateObject)
-//    {
-//        return base.BeginRead(array, offset, numBytes, userCallback, stateObject);
-//    }
-
-//    public override IAsyncResult BeginWrite(byte[] array, int offset, int numBytes, AsyncCallback userCallback, object stateObject)
-//    {
-//        return base.BeginWrite(array, offset, numBytes, userCallback, stateObject);
-//    }
-
-//    public override void Close()
-//    {
-//        var bs = new BufferedStream(this);
-            
-
-//        base.Close();
-//    }
-
-//    public override bool Equals(object obj)
-//    {
-//        return base.Equals(obj);
-//    }
-
-//    public override void Flush()
-//    {
-//        base.Flush();
-//    }
-
-//    public override void Flush(bool flushToDisk)
-//    {
-//        base.Flush(flushToDisk);
-//    }
-
-//    public override Task FlushAsync(CancellationToken cancellationToken)
-//    {
-//        return base.FlushAsync(cancellationToken);
-//    }
-
-//    public override int GetHashCode()
-//    {
-//        return base.GetHashCode();
-//    }
-
-//    public override object InitializeLifetimeService()
-//    {
-//        return base.InitializeLifetimeService();
-//    }
-
-//    public override void Lock(long position, long length)
-//    {
-//        base.Lock(position, length);
-//    }
-
-//    public override int Read(byte[] array, int offset, int count)
-//    {
-//        return base.Read(array, offset, count);
-//    }
-
-//    public override Task<int> ReadAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
-//    {
-//        return base.ReadAsync(buffer, offset, count, cancellationToken);
-//    }
-
-//    public override long Seek(long offset, SeekOrigin origin)
-//    {
-//        return base.Seek(offset, origin);
-//    }
-
-//    public override void SetLength(long value)
-//    {
-//        base.SetLength(value);
-//    }
-
-//    public override string ToString()
-//    {
-//        return base.ToString();
-//    }
-
-//    public override void Unlock(long position, long length)
-//    {
-//        base.Unlock(position, length);
-//    }
-
-//    public override void Write(byte[] array, int offset, int count)
-//    {
-//        base.Write(array, offset, count);
-//    }
-
-//    public override Task WriteAsync(byte[] buffer, int offset, int count, CancellationToken cancellationToken)
-//    {
-//        return base.WriteAsync(buffer, offset, count, cancellationToken);
-//    }
-
-//    public override void WriteByte(byte value)
-//    {
-//        base.WriteByte(value);
-//    }
-
-//    protected override void Dispose(bool disposing)
-//    {
-//        base.Dispose(disposing);
-//    }
-
-//}
\ No newline at end of file
diff --git a/CompressSave/Wrapper/CompressionStream.cs b/CompressSave/Wrapper/CompressionStream.cs
index c95bcd9..98789a9 100644
--- a/CompressSave/Wrapper/CompressionStream.cs
+++ b/CompressSave/Wrapper/CompressionStream.cs
@@ -6,65 +6,68 @@ namespace CompressSave.Wrapper;
 
 public class CompressionStream : Stream
 {
-    public WrapperDefines wrapper;
+    private readonly WrapperDefines _wrapper;
 
-    public const int MB = 1024 * 1024;
+    public const int Mb = 1024 * 1024;
     public override bool CanRead => false;
 
     public override bool CanSeek => false;
 
     public override bool CanWrite => true;
 
-    public override long Length => totalWrite;
+    public override long Length => _totalWrite;
 
     // only use for game statistics
-    public override long Position { get => BufferWriter.WriteSum; set => new NotImplementedException(); }
+    public override long Position
+    {
+        get => BufferWriter.WriteSum;
+        set => throw new NotImplementedException();
+    }
 
-    public readonly Stream outStream;
+    public readonly Stream OutStream;
 
-    long totalWrite = 0;
-    bool useMultiThread;
-    DoubleBuffer doubleBuffer;
+    private long _totalWrite;
+    private readonly bool _useMultiThread;
+    private DoubleBuffer _doubleBuffer;
 
-    private byte[] outBuffer;
+    private byte[] _outBuffer;
 
-    IntPtr cctx;
-    long lastError = 0;
-    bool stopWorker = true;
-    Thread compressThread;
+    private IntPtr _cctx;
+    private long _lastError;
+    private bool _stopWorker = true;
 
     public bool HasError()
     {
-        return lastError != 0;
+        return _lastError != 0;
     }
 
-    public void HandleError(long errorCode)
+    private void HandleError(long errorCode)
     {
         if (errorCode < 0)
         {
-            wrapper.CompressContextFree(cctx);
-            cctx = IntPtr.Zero;
-            lastError = errorCode;
+            _wrapper.CompressContextFree(_cctx);
+            _cctx = IntPtr.Zero;
+            _lastError = errorCode;
             throw new Exception(errorCode.ToString());
         }
     }
 
     public struct CompressBuffer
     {
-        public byte[] readBuffer;
-        public byte[] writeBuffer;
-        public byte[] outBuffer;
+        public byte[] ReadBuffer;
+        public byte[] WriteBuffer;
+        public byte[] OutBuffer;
     }
 
-    public static CompressBuffer CreateBuffer(int outBufferSize, int exBufferSize = 4 * MB)
+    public static CompressBuffer CreateBuffer(int outBufferSize, int exBufferSize = 4 * Mb)
     {
         try
         {
             return new CompressBuffer
             {
-                outBuffer = new byte[outBufferSize],
-                readBuffer = new byte[exBufferSize],
-                writeBuffer = new byte[exBufferSize],
+                OutBuffer = new byte[outBufferSize],
+                ReadBuffer = new byte[exBufferSize],
+                WriteBuffer = new byte[exBufferSize],
             };
         }
         catch (Exception e)
@@ -78,79 +81,77 @@ public class CompressionStream : Stream
 
     public CompressionStream(WrapperDefines wrap, int compressionLevel, Stream outputStream, CompressBuffer compressBuffer, bool multiThread)
     {
-        wrapper = wrap;
-        outStream = outputStream;
-        InitBuffer(compressBuffer.readBuffer, compressBuffer.writeBuffer, compressBuffer.outBuffer);
-        long writeSize = wrapper.CompressBegin(out cctx, compressionLevel, outBuffer, outBuffer.Length);
+        _wrapper = wrap;
+        OutStream = outputStream;
+        InitBuffer(compressBuffer.ReadBuffer, compressBuffer.WriteBuffer, compressBuffer.OutBuffer);
+        var writeSize = _wrapper.CompressBegin(out _cctx, compressionLevel, _outBuffer, _outBuffer.Length);
         HandleError(writeSize);
-        outputStream.Write(outBuffer, 0, (int)writeSize);
-        useMultiThread = multiThread;
-        if(multiThread)
-        {
-            stopWorker = false;
-            compressThread = new Thread(() => CompressAsync());
-            compressThread.Start();
-        }
+        outputStream.Write(_outBuffer, 0, (int)writeSize);
+        _useMultiThread = multiThread;
+        if (!multiThread) return;
+        _stopWorker = false;
+        var compressThread = new Thread(CompressAsync);
+        compressThread.Start();
     }
 
-    void InitBuffer(byte[] readBuffer, byte[] writeBuffer, byte[] outputBuffer)
+    private void InitBuffer(byte[] readBuffer, byte[] writeBuffer, byte[] outputBuffer)
     {
-        doubleBuffer = new DoubleBuffer(readBuffer ?? new byte[4 * MB], writeBuffer ?? new byte[4 * MB], Compress);
-        outBuffer = outputBuffer ?? new byte[wrapper.CompressBufferBound(writeBuffer?.Length ?? 4 * MB)];
-        BufferWriter = new BufferWriter(doubleBuffer,this);
+        _doubleBuffer = new DoubleBuffer(readBuffer ?? new byte[4 * Mb], writeBuffer ?? new byte[4 * Mb], Compress);
+        _outBuffer = outputBuffer ?? new byte[_wrapper.CompressBufferBound(writeBuffer?.Length ?? 4 * Mb)];
+        BufferWriter = new BufferWriter(_doubleBuffer,this);
     }
 
     public override void Flush()
     {
-        doubleBuffer.SwapBuffer();
-        if(useMultiThread)
+        _doubleBuffer.SwapBuffer();
+        if(_useMultiThread)
         {
-            doubleBuffer.WaitReadEnd();
+            _doubleBuffer.WaitReadEnd();
         }
-        lock (outBuffer)
+        lock (_outBuffer)
         {
-            outStream.Flush();
+            OutStream.Flush();
         }
     }
 
-    void Compress()
+    private void Compress()
     {
-        if (!useMultiThread)
+        if (!_useMultiThread)
         {
             Compress_Internal();
         }
     }
 
-    void Compress_Internal()
+    private void Compress_Internal()
     {
-        var consumeBuffer = doubleBuffer.ReadBegin();
+        var consumeBuffer = _doubleBuffer.ReadBegin();
         if (consumeBuffer.Length > 0)
         {
-            lock (outBuffer)
+            lock (_outBuffer)
             {
-                long writeSize = 0;
+                long writeSize;
                 try
                 {
-                    writeSize = wrapper.CompressUpdateEx(cctx, outBuffer, 0, consumeBuffer.Buffer, 0, consumeBuffer.Length);
+                    writeSize = _wrapper.CompressUpdateEx(_cctx, _outBuffer, 0, consumeBuffer.Buffer, 0, consumeBuffer.Length);
                     HandleError(writeSize);
                 }
                 finally
                 {
-                    doubleBuffer.ReadEnd();
+                    _doubleBuffer.ReadEnd();
                 }
-                outStream.Write(outBuffer, 0, (int)writeSize);
-                totalWrite += writeSize;
+                OutStream.Write(_outBuffer, 0, (int)writeSize);
+                _totalWrite += writeSize;
             }
         }
         else
         {
-            doubleBuffer.ReadEnd();
+            _doubleBuffer.ReadEnd();
         }
     }
 
-    void CompressAsync()
+    private void CompressAsync()
     {
-        while(!stopWorker)
+        while(!_stopWorker)
         {
             Compress_Internal();
         }
@@ -187,32 +188,30 @@ public class CompressionStream : Stream
         //inputSum += count;
     }
 
-    protected void FreeContext()
+    private void FreeContext()
     {
-        wrapper.CompressContextFree(cctx);
-        cctx = IntPtr.Zero;
+        _wrapper.CompressContextFree(_cctx);
+        _cctx = IntPtr.Zero;
     }
 
-    bool closed = false;
+    private bool _closed;
     public override void Close()
     {
-        if(!closed)
-        {
-            BufferWriter.Close();
-            closed = true;
-            //Console.WriteLine($"FLUSH");
+        if (_closed) return;
+        BufferWriter.Close();
+        _closed = true;
+        //Console.WriteLine($"FLUSH");
 
-            Flush();
+        Flush();
 
-            // try stop the worker
-            stopWorker = true;
-            doubleBuffer.SwapBuffer();
+        // try stop the worker
+        _stopWorker = true;
+        _doubleBuffer.SwapBuffer();
 
-            long size = wrapper.CompressEnd(cctx, outBuffer, outBuffer.Length);
-            //Debug.Log($"End");
-            outStream.Write(outBuffer, 0, (int)size);
-            base.Close();
-        }
+        var size = _wrapper.CompressEnd(_cctx, _outBuffer, _outBuffer.Length);
+        //Debug.Log($"End");
+        OutStream.Write(_outBuffer, 0, (int)size);
+        base.Close();
     }
 
     protected override void Dispose(bool disposing)
diff --git a/CompressSave/Wrapper/DecompressionStream.cs b/CompressSave/Wrapper/DecompressionStream.cs
index 29ed050..11afbe1 100644
--- a/CompressSave/Wrapper/DecompressionStream.cs
+++ b/CompressSave/Wrapper/DecompressionStream.cs
@@ -5,7 +5,7 @@ namespace CompressSave.Wrapper;
 
 public class DecompressionStream : Stream
 {
-    public WrapperDefines wrapper;
+    private readonly WrapperDefines _wrapper;
 
     public override bool CanRead => true;
 
@@ -13,18 +13,18 @@ public class DecompressionStream : Stream
 
     public override bool CanWrite => false;
 
-    public override long Length => inStream.Length;
+    public override long Length => _inStream.Length;
 
     public override long Position
     {
-        get => readPos;
+        get => _readPos;
         set
         {
-            if (value < readPos)
+            if (value < _readPos)
                 ResetStream();
             else
-                value -= readPos;
-            byte[] tmpBuffer = new byte[1024];
+                value -= _readPos;
+            var tmpBuffer = new byte[1024];
             while (value > 0)
             {
                 value -= Read(tmpBuffer, 0, (int)(value < 1024 ? value : 1024));
@@ -32,56 +32,56 @@ public class DecompressionStream : Stream
         }
     }
 
-    public Stream inStream;
+    private readonly Stream _inStream;
 
-    IntPtr dctx = IntPtr.Zero;
+    private IntPtr _dctx = IntPtr.Zero;
 
-    readonly ByteSpan srcBuffer;
-    readonly ByteSpan dcmpBuffer;
-    private bool decompressFinish = false;
-    readonly long startPos = 0;
-    long readPos = 0; //sum of readlen
+    private readonly ByteSpan _srcBuffer;
+    private readonly ByteSpan _dcmpBuffer;
+    private bool _decompressFinish;
+    private readonly long _startPos;
+    private long _readPos; //sum of readlen
 
     public DecompressionStream(WrapperDefines wrap, Stream inputStream, int extraBufferSize = 512 * 1024)
     {
-        wrapper = wrap;
-        inStream = inputStream;
-        startPos = inputStream.Position;
-        srcBuffer = new ByteSpan(new byte[extraBufferSize]);
-        int len = Fill();
-        long expect = wrapper.DecompressBegin(ref dctx, srcBuffer.Buffer, ref len, out var blockSize);
-        srcBuffer.Position += len;
+        _wrapper = wrap;
+        _inStream = inputStream;
+        _startPos = inputStream.Position;
+        _srcBuffer = new ByteSpan(new byte[extraBufferSize]);
+        var len = Fill();
+        var expect = _wrapper.DecompressBegin(ref _dctx, _srcBuffer.Buffer, ref len, out var blockSize);
+        _srcBuffer.Position += len;
         if (expect < 0) throw new Exception(expect.ToString());
-        dcmpBuffer = new ByteSpan(new byte[blockSize]);
+        _dcmpBuffer = new ByteSpan(new byte[blockSize]);
     }
 
     public void ResetStream()
     {
-        inStream.Seek(startPos, SeekOrigin.Begin);
-        decompressFinish = false;
-        srcBuffer.Clear();
-        dcmpBuffer.Clear();
-        wrapper.DecompressContextReset(dctx);
-        readPos = 0;
+        _inStream.Seek(_startPos, SeekOrigin.Begin);
+        _decompressFinish = false;
+        _srcBuffer.Clear();
+        _dcmpBuffer.Clear();
+        _wrapper.DecompressContextReset(_dctx);
+        _readPos = 0;
     }
 
-    public int Fill()
+    private int Fill()
     {
-        int suplus = srcBuffer.Length - srcBuffer.Position;
-        if (srcBuffer.Length > 0 && srcBuffer.Position >= suplus)
+        var suplus = _srcBuffer.Length - _srcBuffer.Position;
+        if (_srcBuffer.Length > 0 && _srcBuffer.Position >= suplus)
         {
-            Array.Copy(srcBuffer, srcBuffer.Position, srcBuffer, 0, suplus);
-            srcBuffer.Length -= srcBuffer.Position;
-            srcBuffer.Position = 0;
+            Array.Copy(_srcBuffer, _srcBuffer.Position, _srcBuffer, 0, suplus);
+            _srcBuffer.Length -= _srcBuffer.Position;
+            _srcBuffer.Position = 0;
         }
 
-        if (srcBuffer.IdleCapacity > 0)
+        if (_srcBuffer.IdleCapacity > 0)
         {
-            var readlen = inStream.Read(srcBuffer, srcBuffer.Length, srcBuffer.IdleCapacity);
-            srcBuffer.Length += readlen;
+            var readlen = _inStream.Read(_srcBuffer, _srcBuffer.Length, _srcBuffer.IdleCapacity);
+            _srcBuffer.Length += readlen;
         }
 
-        return srcBuffer.Length - srcBuffer.Position;
+        return _srcBuffer.Length - _srcBuffer.Position;
     }
 
     public override void Flush()
@@ -90,51 +90,51 @@ public class DecompressionStream : Stream
 
     protected override void Dispose(bool disposing)
     {
-        wrapper.DecompressEnd(dctx);
-        dctx = IntPtr.Zero;
+        _wrapper.DecompressEnd(_dctx);
+        _dctx = IntPtr.Zero;
         base.Dispose(disposing);
     }
 
     public override int Read(byte[] buffer, int offset, int count)
     {
-        int readlen = 0;
-        while (count > (readlen += dcmpBuffer.Read(buffer, offset + readlen, count - readlen)) && !decompressFinish)
+        var readlen = 0;
+        while (count > (readlen += _dcmpBuffer.Read(buffer, offset + readlen, count - readlen)) && !_decompressFinish)
         {
             var buffSize = Fill();
             if (buffSize <= 0) return readlen;
 
-            var rt = wrapper.DecompressUpdateEx(dctx, dcmpBuffer, 0, dcmpBuffer.Capacity, srcBuffer, srcBuffer.Position,
+            var rt = _wrapper.DecompressUpdateEx(_dctx, _dcmpBuffer, 0, _dcmpBuffer.Capacity, _srcBuffer, _srcBuffer.Position,
                 buffSize);
             if (rt.Expect < 0) throw new Exception(rt.Expect.ToString());
-            if (rt.Expect == 0) decompressFinish = true;
+            if (rt.Expect == 0) _decompressFinish = true;
 
-            srcBuffer.Position += (int)rt.ReadLen;
-            dcmpBuffer.Position = 0;
-            dcmpBuffer.Length = (int)rt.WriteLen;
+            _srcBuffer.Position += (int)rt.ReadLen;
+            _dcmpBuffer.Position = 0;
+            _dcmpBuffer.Length = (int)rt.WriteLen;
         }
 
-        readPos += readlen;
+        _readPos += readlen;
         return readlen;
     }
 
     public int PeekByte()
     {
-        if (dcmpBuffer.Length <= dcmpBuffer.Position)
+        if (_dcmpBuffer.Length <= _dcmpBuffer.Position)
         {
             var buffSize = Fill();
             if (buffSize <= 0) return -1;
 
-            var rt = wrapper.DecompressUpdateEx(dctx, dcmpBuffer, 0, dcmpBuffer.Capacity, srcBuffer, srcBuffer.Position,
+            var rt = _wrapper.DecompressUpdateEx(_dctx, _dcmpBuffer, 0, _dcmpBuffer.Capacity, _srcBuffer, _srcBuffer.Position,
                 buffSize);
             if (rt.Expect < 0) throw new Exception(rt.Expect.ToString());
-            if (rt.Expect == 0) decompressFinish = true;
+            if (rt.Expect == 0) _decompressFinish = true;
 
-            srcBuffer.Position += (int)rt.ReadLen;
-            dcmpBuffer.Position = 0;
-            dcmpBuffer.Length = (int)rt.WriteLen;
+            _srcBuffer.Position += (int)rt.ReadLen;
+            _dcmpBuffer.Position = 0;
+            _dcmpBuffer.Length = (int)rt.WriteLen;
         }
 
-        return dcmpBuffer.Buffer[dcmpBuffer.Position];
+        return _dcmpBuffer.Buffer[_dcmpBuffer.Position];
     }
 
     public override long Seek(long offset, SeekOrigin origin)
diff --git a/CompressSave/Wrapper/DoubleBuffer.cs b/CompressSave/Wrapper/DoubleBuffer.cs
index b561448..23514ba 100644
--- a/CompressSave/Wrapper/DoubleBuffer.cs
+++ b/CompressSave/Wrapper/DoubleBuffer.cs
@@ -5,10 +5,10 @@ namespace CompressSave.Wrapper;
 
 public class ByteSpan
 {
-    public byte[] Buffer { get; private set; }
+    public byte[] Buffer { get; }
     //public int Start;
     public int Length;
-    public int Capacity;
+    public readonly int Capacity;
     public int IdleCapacity => Capacity - Length;
     public int Position;
 
@@ -41,61 +41,45 @@ public class ByteSpan
     public static implicit operator byte[](ByteSpan bs) => bs.Buffer;
 }
 
-public struct ReadOnlySpan
+public struct ReadOnlySpan(byte[] buffer, int length)
 {
-    public readonly int Length;
-    public readonly byte[] Buffer;
-    public int Position;
-
-    public ReadOnlySpan(byte[] buffer, int length)
-    {
-        Buffer = buffer;
-        Length = length;
-        Position = 0;
-    }
+    private readonly byte[] _buffer = buffer;
+    private int _position = 0;
 
     public int Read(byte[] dst, int offset, int count)
     {
-        count = Math.Min(Length - Position, count);
-        Array.Copy(Buffer, Position, dst, offset, count);
-        Position += count;
+        count = Math.Min(length - _position, count);
+        Array.Copy(_buffer, _position, dst, offset, count);
+        _position += count;
         return count;
     }
 
-    public static implicit operator byte[](ReadOnlySpan s) => s.Buffer;
+    public static implicit operator byte[](ReadOnlySpan s) => s._buffer;
 }
 
-public class DoubleBuffer
+public class DoubleBuffer(byte[] readingBuffer, byte[] writingBuffer, Action onReadBufferReadyAction)
 {
-    public const int MB = 1024 * 1024;
+    public const int Mb = 1024 * 1024;
 
-    public ByteSpan writeBuffer;
-    public ByteSpan readBuffer;
-    private ByteSpan midBuffer;
-    private Action onReadBufferReady;
+    public ByteSpan WriteBuffer = new(writingBuffer);
+    private ByteSpan _readBuffer;
+    private ByteSpan _midBuffer = new(readingBuffer);
 
-    Semaphore readEnd = new Semaphore(1, 1);
-    Semaphore writeEnd = new Semaphore(0, 1);
-
-    public DoubleBuffer(byte[] readingBuffer, byte[] writingBuffer, Action onReadBufferReadyAction)
-    {
-        onReadBufferReady = onReadBufferReadyAction;
-        midBuffer = new ByteSpan(readingBuffer);
-        writeBuffer = new ByteSpan(writingBuffer);
-    }
+    private readonly Semaphore _readEnd = new Semaphore(1, 1);
+    private readonly Semaphore _writeEnd = new Semaphore(0, 1);
 
     public ByteSpan ReadBegin()
     {
-        writeEnd.WaitOne();
-        return readBuffer;
+        _writeEnd.WaitOne();
+        return _readBuffer;
     }
 
     public void ReadEnd()
     {
-        readBuffer.Clear();
-        midBuffer = readBuffer;
-        readBuffer = null;
-        readEnd.Release();
+        _readBuffer.Clear();
+        _midBuffer = _readBuffer;
+        _readBuffer = null;
+        _readEnd.Release();
     }
     /// <summary>
     /// swap current write buffer to read and wait a new write buffer
@@ -105,27 +89,27 @@ public class DoubleBuffer
     {
         var write = SwapBegin();
         SwapEnd();
-        onReadBufferReady?.Invoke();
+        onReadBufferReadyAction?.Invoke();
         return write;
     }
 
     public void WaitReadEnd()
     {
-        readEnd.WaitOne();
-        readEnd.Release();
+        _readEnd.WaitOne();
+        _readEnd.Release();
     }
 
-    public ByteSpan SwapBegin()
+    private ByteSpan SwapBegin()
     {
-        readEnd.WaitOne();
-        readBuffer = writeBuffer;
-        writeBuffer = midBuffer;
-        midBuffer = null;
-        return writeBuffer;
+        _readEnd.WaitOne();
+        _readBuffer = WriteBuffer;
+        WriteBuffer = _midBuffer;
+        _midBuffer = null;
+        return WriteBuffer;
     }
 
-    public void SwapEnd()
+    private void SwapEnd()
     {
-        writeEnd.Release();
+        _writeEnd.Release();
     }
 }
\ No newline at end of file
diff --git a/CompressSave/Wrapper/LZ4Wrapper.cs b/CompressSave/Wrapper/LZ4Wrapper.cs
index f722dea..406a974 100644
--- a/CompressSave/Wrapper/LZ4Wrapper.cs
+++ b/CompressSave/Wrapper/LZ4Wrapper.cs
@@ -12,8 +12,8 @@ public class LZ4API: WrapperDefines
     static LZ4API()
     {
         Avaliable = true;
-        string assemblyPath = System.Reflection.Assembly.GetAssembly(typeof(LZ4API)).Location;
-        string root = string.Empty;
+        var assemblyPath = System.Reflection.Assembly.GetAssembly(typeof(LZ4API)).Location;
+        var root = string.Empty;
         try
         {
             if (!string.IsNullOrEmpty(assemblyPath))
@@ -24,16 +24,15 @@ public class LZ4API: WrapperDefines
             var map = new Dictionary<string, List<DynDllMapping>>
             {
                 {
-                    "lz4wrap.dll", new List<DynDllMapping>
-                    {
+                    "lz4wrap.dll", [
                         "lz4wrap.dll",
                         "x64/lz4wrap.dll",
                         "plugins/x64/lz4wrap.dll",
                         "BepInEx/scripts/x64/lz4wrap.dll",
                         Path.Combine(root, "lz4wrap.dll"),
                         Path.Combine(root, "x64/lz4wrap.dll"),
-                        Path.Combine(root, "plugins/x64/lz4wrap.dll"),
-                    }
+                        Path.Combine(root, "plugins/x64/lz4wrap.dll")
+                    ]
                 },
             };
             typeof(LZ4API).ResolveDynDllImports(map);
diff --git a/CompressSave/Wrapper/NoneWrapper.cs b/CompressSave/Wrapper/NoneWrapper.cs
index d576983..16766fb 100644
--- a/CompressSave/Wrapper/NoneWrapper.cs
+++ b/CompressSave/Wrapper/NoneWrapper.cs
@@ -24,16 +24,15 @@ public class NoneAPI: WrapperDefines
             var map = new Dictionary<string, List<DynDllMapping>>
             {
                 {
-                    "nonewrap.dll", new List<DynDllMapping>
-                    {
+                    "nonewrap.dll", [
                         "nonewrap.dll",
                         "x64/nonewrap.dll",
                         "plugins/x64/nonewrap.dll",
                         "BepInEx/scripts/x64/nonewrap.dll",
                         Path.Combine(root, "nonewrap.dll"),
                         Path.Combine(root, "x64/nonewrap.dll"),
-                        Path.Combine(root, "plugins/x64/nonewrap.dll"),
-                    }
+                        Path.Combine(root, "plugins/x64/nonewrap.dll")
+                    ]
                 },
             };
             typeof(NoneAPI).ResolveDynDllImports(map);
diff --git a/CompressSave/Wrapper/PeekableReader.cs b/CompressSave/Wrapper/PeekableReader.cs
index daf577e..04a2a78 100644
--- a/CompressSave/Wrapper/PeekableReader.cs
+++ b/CompressSave/Wrapper/PeekableReader.cs
@@ -2,16 +2,10 @@
 
 namespace CompressSave.Wrapper;
 
-class PeekableReader : BinaryReader
+internal class PeekableReader(DecompressionStream input) : BinaryReader(input)
 {
-    DecompressionStream decompressionStream;
-    public PeekableReader(DecompressionStream input) : base (input)
-    {
-        decompressionStream = input;
-    }
-
     public override int PeekChar()
     {            
-        return decompressionStream.PeekByte();
+        return input.PeekByte();
     }
 }
\ No newline at end of file
diff --git a/CompressSave/Wrapper/ZstdWrapper.cs b/CompressSave/Wrapper/ZstdWrapper.cs
index 1caa357..677d7d4 100644
--- a/CompressSave/Wrapper/ZstdWrapper.cs
+++ b/CompressSave/Wrapper/ZstdWrapper.cs
@@ -24,16 +24,15 @@ public class ZstdAPI: WrapperDefines
             var map = new Dictionary<string, List<DynDllMapping>>
             {
                 {
-                    "zstdwrap.dll", new List<DynDllMapping>
-                    {
+                    "zstdwrap.dll", [
                         "zstdwrap.dll",
                         "x64/zstdwrap.dll",
                         "plugins/x64/zstdwrap.dll",
                         "BepInEx/scripts/x64/zstdwrap.dll",
                         Path.Combine(root, "zstdwrap.dll"),
                         Path.Combine(root, "x64/zstdwrap.dll"),
-                        Path.Combine(root, "plugins/x64/zstdwrap.dll"),
-                    }
+                        Path.Combine(root, "plugins/x64/zstdwrap.dll")
+                    ]
                 },
             };
             typeof(ZstdAPI).ResolveDynDllImports(map);
diff --git a/Dustbin/BeltSignal.cs b/Dustbin/BeltSignal.cs
index e2c38b0..ad44ed3 100644
--- a/Dustbin/BeltSignal.cs
+++ b/Dustbin/BeltSignal.cs
@@ -105,7 +105,7 @@ public static class BeltSignal
             if (obj != null) return obj;
         }
 
-        obj = new HashSet<int>();
+        obj = [];
         _signalBelts[index] = obj;
         return obj;
     }
diff --git a/HideTips/HideTips.cs b/HideTips/HideTips.cs
index 0f47a73..d069528 100644
--- a/HideTips/HideTips.cs
+++ b/HideTips/HideTips.cs
@@ -120,7 +120,7 @@ public class HideTips : BaseUnityPlugin
         );
         var labels = matcher.Labels;
         var label1 = generator.DefineLabel();
-        matcher.Labels = new List<Label>();
+        matcher.Labels = [];
         matcher.InsertAndAdvance(
             new CodeInstruction(OpCodes.Ldsfld, AccessTools.Field(typeof(HideTips), nameof(_noResearchCompletionTips))).WithLabels(labels),
             new CodeInstruction(OpCodes.Brtrue, label1)
diff --git a/LogisticMiner/LogisticMiner.cs b/LogisticMiner/LogisticMiner.cs
index e0b035e..a774f05 100644
--- a/LogisticMiner/LogisticMiner.cs
+++ b/LogisticMiner/LogisticMiner.cs
@@ -363,7 +363,7 @@ public class LogisticMiner : BaseUnityPlugin
                 }
                 else
                 {
-                    _veins.Add(productId, new List<int> { i });
+                    _veins.Add(productId, [i]);
                 }
 
                 if (vg.TryGetValue(productId, out var hs))
@@ -372,7 +372,7 @@ public class LogisticMiner : BaseUnityPlugin
                 }
                 else
                 {
-                    vg.Add(productId, new HashSet<int> { veinPool[i].groupIndex });
+                    vg.Add(productId, [veinPool[i].groupIndex]);
                 }
             }
 
diff --git a/UXAssist/Common/I18N.cs b/UXAssist/Common/I18N.cs
index f07aefa..9836d76 100644
--- a/UXAssist/Common/I18N.cs
+++ b/UXAssist/Common/I18N.cs
@@ -18,7 +18,7 @@ public static class I18N
 
     public static bool Initialized() => _initialized;
     private static int _nextID = 1;
-    private static readonly List<StringProto> StringsToAdd = new();
+    private static readonly List<StringProto> StringsToAdd = [];
     public static void Add(string key, string enus, string zhcn = null, string frfr = null)
     {
         var strProto = new StringProto
diff --git a/UXAssist/DysonSpherePatch.cs b/UXAssist/DysonSpherePatch.cs
index 55060f5..3590397 100644
--- a/UXAssist/DysonSpherePatch.cs
+++ b/UXAssist/DysonSpherePatch.cs
@@ -139,7 +139,7 @@ public static class DysonSpherePatch
         private static void SetNodeForAbsorb(int index, int layerId, int nodeId, bool canAbsorb)
         {
             ref var comp = ref _nodeForAbsorb[index];
-            comp ??= new HashSet<int>();
+            comp ??= [];
             var idx = nodeId * 10 + layerId;
             if (canAbsorb)
                 comp.Add(idx);
@@ -241,7 +241,7 @@ public static class DysonSpherePatch
                 new CodeMatch(OpCodes.Stfld, AccessTools.Field(typeof(DysonNode), nameof(DysonNode.sp)))
             ).Advance(1);
             var labels = matcher.Labels;
-            matcher.Labels = new List<Label>();
+            matcher.Labels = [];
             matcher.Insert(
                 new CodeInstruction(OpCodes.Ldarg_0).WithLabels(labels),
                 new CodeInstruction(OpCodes.Call, AccessTools.Method(typeof(StopEjectOnNodeComplete), nameof(StopEjectOnNodeComplete.UpdateNodeForAbsorbOnSpChange)))
diff --git a/UXAssist/FactoryPatch.cs b/UXAssist/FactoryPatch.cs
index 113f478..98c1fd9 100644
--- a/UXAssist/FactoryPatch.cs
+++ b/UXAssist/FactoryPatch.cs
@@ -326,7 +326,7 @@ public static class FactoryPatch
             );
             var jumpPos = matcher.InstructionAt(3).operand;
             var labels = matcher.Labels;
-            matcher.Labels = new List<Label>();
+            matcher.Labels = [];
             /* Insert: br   2358 (1C12) ldloc.s V_8 (8)
              */
             matcher.Insert(new CodeInstruction(OpCodes.Br, jumpPos).WithLabels(labels));
@@ -360,7 +360,7 @@ public static class FactoryPatch
             {
                 // Remove 7 instructions, if the following instruction is br/br.s, remove it as well
                 var labels = matcher.Labels;
-                matcher.Labels = new List<Label>();
+                matcher.Labels = [];
                 matcher.RemoveInstructions(7);
                 var opcode = matcher.Opcode;
                 if (opcode == OpCodes.Br || opcode == OpCodes.Br_S)
@@ -384,7 +384,7 @@ public static class FactoryPatch
                 matcher.Repeat(codeMatcher =>
                 {
                     var labels = codeMatcher.Labels;
-                    codeMatcher.Labels = new List<Label>();
+                    codeMatcher.Labels = [];
                     codeMatcher.RemoveInstructions(3);
                     var opcode = codeMatcher.Opcode;
                     if (opcode == OpCodes.Br || opcode == OpCodes.Br_S)
diff --git a/UXAssist/PlanetFunctions.cs b/UXAssist/PlanetFunctions.cs
index 96ed8bc..f7b2dc7 100644
--- a/UXAssist/PlanetFunctions.cs
+++ b/UXAssist/PlanetFunctions.cs
@@ -178,7 +178,6 @@ public static class PlanetFunctions
             {
                 if (prebuildPool[i].id != i) continue;
                 pos = prebuildPool[i].pos;
-                found = true;
                 break;
             }
         }
diff --git a/UXAssist/PlanetPatch.cs b/UXAssist/PlanetPatch.cs
index 1510fe1..56f080d 100644
--- a/UXAssist/PlanetPatch.cs
+++ b/UXAssist/PlanetPatch.cs
@@ -51,7 +51,7 @@ public static class PlanetPatch
             matcher.Repeat(codeMatcher =>
             {
                 var labels = codeMatcher.Labels;
-                codeMatcher.Labels = new List<Label>();
+                codeMatcher.Labels = [];
                 codeMatcher.RemoveInstructions(3).Labels.AddRange(labels);
             });
             return matcher.InstructionEnumeration();
@@ -82,7 +82,7 @@ public static class PlanetPatch
                 new CodeMatch(OpCodes.Stloc_1)
             );
             var labels = matcher.Labels;
-            matcher.Labels = new List<Label>();
+            matcher.Labels = [];
             matcher.InsertAndAdvance(
                 new CodeInstruction(OpCodes.Ldsfld, AccessTools.Field(typeof(UIGame), nameof(UIGame.viewMode))).WithLabels(labels),
                 new CodeInstruction(OpCodes.Ldc_I4_3),
diff --git a/UXAssist/UI/MyKeyBinder.cs b/UXAssist/UI/MyKeyBinder.cs
index cfddd1b..652dd1b 100644
--- a/UXAssist/UI/MyKeyBinder.cs
+++ b/UXAssist/UI/MyKeyBinder.cs
@@ -121,8 +121,8 @@ public class MyKeyBinder : MonoBehaviour
         }
     }
 
-    
-    public bool TrySetValue()
+
+    private bool TrySetValue()
     {
         if (Input.GetKey(KeyCode.Escape))
         {
@@ -155,7 +155,7 @@ public class MyKeyBinder : MonoBehaviour
              KeyCode.LeftCommand,  KeyCode.LeftApple, KeyCode.LeftWindows,
              KeyCode.RightCommand,  KeyCode.RightApple, KeyCode.RightWindows };
 
-    public string GetPressedKey()
+    private string GetPressedKey()
     {
         var key = _lastKey.ToString();
         if (string.IsNullOrEmpty(key))
@@ -179,7 +179,7 @@ public class MyKeyBinder : MonoBehaviour
     }
 
     //通常キーが押されているかチェック _lastKey に保存
-    public bool GetIunptKeys()
+    private bool GetIunptKeys()
     {
         var anyKey = false;
 
diff --git a/UXAssist/UI/MyWindow.cs b/UXAssist/UI/MyWindow.cs
index 329f47f..e3242a2 100644
--- a/UXAssist/UI/MyWindow.cs
+++ b/UXAssist/UI/MyWindow.cs
@@ -4,6 +4,7 @@ using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.Events;
 using UnityEngine.UI;
+using Object = UnityEngine.Object;
 
 namespace UXAssist.UI;
 
@@ -133,14 +134,13 @@ public class MyWindow: ManualBehaviour
         if (t != null)
         {
             t.text = text.Translate();
+            t.fontSize = fontSize;
         }
-        t.fontSize = fontSize;
         btn.button.onClick.RemoveAllListeners();
         _buttons[btn] = onClick;
-        if (EventRegistered)
+        if (EventRegistered && onClick != null)
         {
-            if (onClick != null)
-                btn.button.onClick.AddListener(onClick);
+            btn.button.onClick.AddListener(onClick);
         }
         return btn;
     }
@@ -215,7 +215,7 @@ public class MyWindow: ManualBehaviour
 
 public class MyWindowWithTabs : MyWindow
 {
-    private readonly List<Tuple<RectTransform, UIButton>> _tabs = new();
+    private readonly List<Tuple<RectTransform, UIButton>> _tabs = [];
     private float _tabY = 54f;
     public override void TryClose()
     {
@@ -347,10 +347,10 @@ public static class MyWindowManager
     {
         var srcWin = UIRoot.instance.uiGame.tankWindow;
         var src = srcWin.gameObject;
-        var go = GameObject.Instantiate(src, UIRoot.instance.uiGame.transform.parent);
+        var go = Object.Instantiate(src, UIRoot.instance.uiGame.transform.parent);
         go.name = name;
         go.SetActive(false);
-        GameObject.Destroy(go.GetComponent<UITankWindow>());
+        Object.Destroy(go.GetComponent<UITankWindow>());
         var win = go.AddComponent<T>() as MyWindow;
         if (win == null)
             return null;
@@ -369,7 +369,7 @@ public static class MyWindowManager
             }
             else if (child.name != "shadow" && child.name != "panel-bg")
             {
-                GameObject.Destroy(child);
+                Object.Destroy(child);
             }
         }
 
diff --git a/UXAssist/UIConfigWindow.cs b/UXAssist/UIConfigWindow.cs
index 255128f..8ea01ca 100644
--- a/UXAssist/UIConfigWindow.cs
+++ b/UXAssist/UIConfigWindow.cs
@@ -86,17 +86,17 @@ public static class UIConfigWindow
         x = 400f;
         y = 10f;
         wnd.AddButton(x, y, tab2, "Initialize This Planet", 16, "button-init-planet", () =>
-            UIMessageBox.Show("Initialize This Planet".Translate(), "Initialize This Planet Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, new UIMessageBox.Response(() =>
+            UIMessageBox.Show("Initialize This Planet".Translate(), "Initialize This Planet Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, () =>
             {
                 PlanetFunctions.RecreatePlanet(true);
-            }))
+            })
         );
         y += 36f;
         wnd.AddButton(x, y, tab2, "Dismantle All Buildings", 16, "button-dismantle-all", () =>
-            UIMessageBox.Show("Dismantle All Buildings".Translate(), "Dismantle All Buildings Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, new UIMessageBox.Response(() =>
+            UIMessageBox.Show("Dismantle All Buildings".Translate(), "Dismantle All Buildings Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, () =>
             {
                 PlanetFunctions.DismantleAll(false);
-            }))
+            })
         );
 
         y += 72f;
@@ -128,10 +128,10 @@ public static class UIConfigWindow
         x = 400f;
         y = 10f;
         wnd.AddButton(x, y, tab3, "Initialize Dyson Sphere", 16, "init-dyson-sphere", () =>
-            UIMessageBox.Show("Initialize Dyson Sphere".Translate(), "Initialize Dyson Sphere Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, new UIMessageBox.Response(() =>
+            UIMessageBox.Show("Initialize Dyson Sphere".Translate(), "Initialize Dyson Sphere Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, () =>
             {
                 DysonSpherePatch.InitCurrentDysonSphere(-1);
-            }))
+            })
         );
         y += 36f;
         MyWindow.AddText(x, y, tab3, "Click to dismantle selected layer", 16, "text-dismantle-layer");
@@ -140,10 +140,10 @@ public static class UIConfigWindow
         {
             var id = i + 1;
             var btn = wnd.AddFlatButton(x, y, tab3, id.ToString(), 12, "dismantle-layer-" + id, () =>
-                UIMessageBox.Show("Dismantle selected layer".Translate(), "Dismantle selected layer Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, new UIMessageBox.Response(() =>
+                UIMessageBox.Show("Dismantle selected layer".Translate(), "Dismantle selected layer Confirm".Translate(), "取消".Translate(), "确定".Translate(), 2, null, () =>
                 {
                     DysonSpherePatch.InitCurrentDysonSphere(id);
-                }))
+                })
             );
             ((RectTransform)btn.transform).sizeDelta = new Vector2(40f, 20f);
             DysonLayerBtn[i] = btn;
diff --git a/UniverseGenTweaks/BirthPlanetPatch.cs b/UniverseGenTweaks/BirthPlanetPatch.cs
index a9dc261..a9973fc 100644
--- a/UniverseGenTweaks/BirthPlanetPatch.cs
+++ b/UniverseGenTweaks/BirthPlanetPatch.cs
@@ -114,8 +114,8 @@ public static class BirthPlanetPatch
             theme.VeinOpacity[3] = 1f;
         }
 
-        List<int> veins = new();
-        List<float> settings = new();
+        List<int> veins = [];
+        List<float> settings = [];
         if (FireIceOnBirthPlanet.Value)
         {
             veins.Add(8);