diff --git a/CollapseLauncher/Classes/Helper/HttpClientBuilder.cs b/CollapseLauncher/Classes/Helper/HttpClientBuilder.cs
index 71526b5b2..0c231434c 100644
--- a/CollapseLauncher/Classes/Helper/HttpClientBuilder.cs
+++ b/CollapseLauncher/Classes/Helper/HttpClientBuilder.cs
@@ -2,7 +2,6 @@
 using Hi3Helper.Shared.Region;
 using System;
 using System.Collections.Generic;
-using System.Diagnostics;
 using System.Net;
 using System.Net.Http;
 using System.Net.Security;
@@ -15,8 +14,8 @@ public class HttpClientBuilder : HttpClientBuilder<SocketsHttpHandler>;
 
     public class HttpClientBuilder<THandler> where THandler : HttpMessageHandler, new()
     {
-        private const int _maxConnectionsDefault = 32;
-        private const double _httpTimeoutDefault = 90; // in Seconds
+        private const int MaxConnectionsDefault = 32;
+        private const double HttpTimeoutDefault = 90; // in Seconds
 
         private bool IsUseProxy              { get; set; } = true;
         private bool IsUseSystemProxy        { get; set; } = true;
@@ -24,14 +23,14 @@ public class HttpClientBuilder : HttpClientBuilder<SocketsHttpHandler>;
         private bool IsAllowHttpCookies      { get; set; }
         private bool IsAllowUntrustedCert    { get; set; }
 
-        private int                         MaxConnections            { get; set; } = _maxConnectionsDefault;
+        private int                         MaxConnections            { get; set; } = MaxConnectionsDefault;
         private DecompressionMethods        DecompressionMethod       { get; set; } = DecompressionMethods.All;
         private WebProxy?                   ExternalProxy             { get; set; }
         private Version                     HttpProtocolVersion       { get; set; } = HttpVersion.Version30;
         private string?                     HttpUserAgent             { get; set; } = GetDefaultUserAgent();
         private string?                     HttpAuthHeader            { get; set; }
         private HttpVersionPolicy           HttpProtocolVersionPolicy { get; set; } = HttpVersionPolicy.RequestVersionOrLower;
-        private TimeSpan                    HttpTimeout               { get; set; } = TimeSpan.FromSeconds(_httpTimeoutDefault);
+        private TimeSpan                    HttpTimeout               { get; set; } = TimeSpan.FromSeconds(HttpTimeoutDefault);
         private Uri?                        HttpBaseUri               { get; set; }
         private Dictionary<string, string?> HttpHeaders               { get; set; } = new(StringComparer.OrdinalIgnoreCase);
 
@@ -80,7 +79,7 @@ public HttpClientBuilder<THandler> UseExternalProxy(Uri hostUri, string? usernam
             return this;
         }
 
-        public HttpClientBuilder<THandler> UseLauncherConfig(int maxConnections = _maxConnectionsDefault)
+        public HttpClientBuilder<THandler> UseLauncherConfig(int maxConnections = MaxConnectionsDefault)
         {
             bool lIsUseProxy = LauncherConfig.GetAppConfigValue("IsUseProxy").ToBool();
             bool lIsAllowHttpRedirections = LauncherConfig.GetAppConfigValue("IsAllowHttpRedirections").ToBool();
@@ -111,7 +110,7 @@ public HttpClientBuilder<THandler> UseLauncherConfig(int maxConnections = _maxCo
             return this;
         }
 
-        public HttpClientBuilder<THandler> SetMaxConnection(int maxConnections = _maxConnectionsDefault)
+        public HttpClientBuilder<THandler> SetMaxConnection(int maxConnections = MaxConnectionsDefault)
         {
             if (maxConnections < 2)
                 maxConnections = 2;
@@ -159,18 +158,18 @@ public HttpClientBuilder<THandler> SetHttpVersion(Version? version = null, HttpV
             return this;
         }
 
-        public HttpClientBuilder<THandler> SetTimeout(double fromSeconds = _httpTimeoutDefault)
+        public HttpClientBuilder<THandler> SetTimeout(double fromSeconds = HttpTimeoutDefault)
         {
             if (double.IsNaN(fromSeconds) || double.IsInfinity(fromSeconds))
-                fromSeconds = _httpTimeoutDefault;
+                fromSeconds = HttpTimeoutDefault;
 
             return SetTimeout(TimeSpan.FromSeconds(fromSeconds));
         }
 
         public HttpClientBuilder<THandler> SetTimeout(TimeSpan? timeout = null)
         {
-            timeout ??= TimeSpan.FromSeconds(_httpTimeoutDefault);
-            HttpTimeout = timeout.Value;
+            timeout     ??= TimeSpan.FromSeconds(HttpTimeoutDefault);
+            HttpTimeout =   timeout.Value;
             return this;
         }
 
diff --git a/CollapseLauncher/Program.cs b/CollapseLauncher/Program.cs
index 35f079d1a..d91f39fc6 100644
--- a/CollapseLauncher/Program.cs
+++ b/CollapseLauncher/Program.cs
@@ -6,7 +6,6 @@
 using Hi3Helper.Http.Legacy;
 using Hi3Helper.SentryHelper;
 using Hi3Helper.Shared.ClassStruct;
-using Hi3Helper.Shared.Region;
 using Hi3Helper.Win32.Native.LibraryImport;
 using Hi3Helper.Win32.Native.ManagedTools;
 using Hi3Helper.Win32.ShellLinkCOM;
diff --git a/Hi3Helper.Core/Classes/Logger/Type/LoggerNull.cs b/Hi3Helper.Core/Classes/Logger/Type/LoggerNull.cs
index 500562cfc..3b90eef4f 100644
--- a/Hi3Helper.Core/Classes/Logger/Type/LoggerNull.cs
+++ b/Hi3Helper.Core/Classes/Logger/Type/LoggerNull.cs
@@ -1,4 +1,5 @@
 using System.Text;
+// ReSharper disable MethodOverloadWithOptionalParameter
 
 namespace Hi3Helper
 {
@@ -9,7 +10,7 @@ public class LoggerNull(string folderPath, Encoding encoding) : LoggerBase(folde
         #region Methods
         public void Dispose() => DisposeBase();
         public override void LogWriteLine() { }
-        public override void LogWriteLine(string _ = null) { }
+        public override void LogWriteLine(string line = null) { }
         public override void LogWriteLine(string line, LogType type) { }
         public override void LogWriteLine(string line, LogType type, bool writeToLog)
         {