diff --git a/XIVChat Desktop/Connection.cs b/XIVChat Desktop/Connection.cs
index dca87c0..4d9c6ee 100644
--- a/XIVChat Desktop/Connection.cs	
+++ b/XIVChat Desktop/Connection.cs	
@@ -4,7 +4,6 @@ using System.ComponentModel;
 using System.Linq;
 using System.Net.Sockets;
 using System.Security.Cryptography;
-using System.Text;
 using System.Threading;
 using System.Threading.Channels;
 using System.Threading.Tasks;
@@ -261,7 +260,7 @@ namespace XIVChat_Desktop {
                                     Console.WriteLine(inner.StackTrace);
                                 }
                             });
-                            if (!(ex.InnerException is CryptographicException)) {
+                            if (ex.InnerException is not CryptographicException) {
                                 this.app.Disconnect();
                                 break;
                             }
diff --git a/XIVChat Desktop/MainWindow.xaml.cs b/XIVChat Desktop/MainWindow.xaml.cs
index 1666e88..8049163 100644
--- a/XIVChat Desktop/MainWindow.xaml.cs	
+++ b/XIVChat Desktop/MainWindow.xaml.cs	
@@ -310,7 +310,7 @@ namespace XIVChat_Desktop {
             // detect if scroller is at the bottom
             var scroller = this.FindElementByName<ScrollViewer>(this.Tabs, "scroller");
             var verticalOffset = scroller!.VerticalOffset;
-            var wasAtBottom = Math.Abs(verticalOffset - scroller.ScrollableHeight) < .0001;
+            var wasAtBottom = Math.Abs(verticalOffset - scroller.ScrollableHeight) < .1;
 
             // add message to main list
             this.Messages.Add(message);
@@ -358,7 +358,7 @@ namespace XIVChat_Desktop {
         }
 
         private void Input_Submit(object sender, KeyEventArgs e) {
-            if (!(sender is TextBox textBox)) {
+            if (sender is not TextBox textBox) {
                 return;
             }
 
diff --git a/XIVChat Desktop/MaximiseHelper.cs b/XIVChat Desktop/MaximiseHelper.cs
index d2cefca..ae0380d 100644
--- a/XIVChat Desktop/MaximiseHelper.cs	
+++ b/XIVChat Desktop/MaximiseHelper.cs	
@@ -6,7 +6,7 @@ using System.Windows.Interop;
 namespace XIVChat_Desktop {
     public static class MaximiseHelper {
         public static void FixMaximise(object? sender, EventArgs e) {
-            if (!(sender is Window window)) {
+            if (sender is not Window window) {
                 return;
             }
 
diff --git a/XIVChat Desktop/Util.cs b/XIVChat Desktop/Util.cs
index 777562e..26ec049 100644
--- a/XIVChat Desktop/Util.cs	
+++ b/XIVChat Desktop/Util.cs	
@@ -77,7 +77,7 @@ namespace XIVChat_Desktop {
         public static bool IsWhitespace(this char c) {
             // 2.1 Characters and lines
             // A whitespace character is a space(U + 0020), tab(U + 0009), newline(U + 000A), line tabulation (U + 000B), form feed (U + 000C), or carriage return (U + 000D).
-            return c <= ' ' && (c == ' ' || c == '\t' || c == '\n' || c == '\v' || c == '\f' || c == '\r');
+            return c is <= ' ' and (' ' or '\t' or '\n' or '\v' or '\f' or '\r');
         }
 
         public static string? WorldName(ushort id) {
@@ -715,7 +715,7 @@ namespace XIVChat_Desktop {
 
     public class RegexValidator : ValidationRule {
         public override ValidationResult Validate(object value, CultureInfo cultureInfo) {
-            if (!(value is string text)) {
+            if (value is not string text) {
                 return new ValidationResult(false, "Value is not text.");
             }
 
@@ -728,7 +728,7 @@ namespace XIVChat_Desktop {
     public class StringWrapper : INotifyPropertyChanged {
         private string value;
 
-        public String Value {
+        public string Value {
             get => this.value;
             set {
                 this.value = value;