diff --git a/GitClient.xcodeproj/project.pbxproj b/GitClient.xcodeproj/project.pbxproj
index 5c7ac46..fcd85af 100644
--- a/GitClient.xcodeproj/project.pbxproj
+++ b/GitClient.xcodeproj/project.pbxproj
@@ -523,7 +523,7 @@
 			attributes = {
 				BuildIndependentTargetsInParallel = 1;
 				LastSwiftUpdateCheck = 1400;
-				LastUpgradeCheck = 1600;
+				LastUpgradeCheck = 1620;
 				TargetAttributes = {
 					61347EE928D5D16C00625FC4 = {
 						CreatedOnToolsVersion = 14.0.1;
@@ -701,6 +701,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
@@ -763,6 +764,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				ASSETCATALOG_COMPILER_GENERATE_SWIFT_ASSET_SYMBOL_EXTENSIONS = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_ANALYZER_NUMBER_OBJECT_CONVERSION = YES_AGGRESSIVE;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++20";
diff --git a/GitClient.xcodeproj/xcshareddata/xcschemes/GitClient.xcscheme b/GitClient.xcodeproj/xcshareddata/xcschemes/GitClient.xcscheme
index 1d8b82a..908a19f 100644
--- a/GitClient.xcodeproj/xcshareddata/xcschemes/GitClient.xcscheme
+++ b/GitClient.xcodeproj/xcshareddata/xcschemes/GitClient.xcscheme
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1600"
+   LastUpgradeVersion = "1620"
    version = "1.7">
    <BuildAction
       parallelizeBuildables = "YES"
diff --git a/GitClient/Views/Commit/ChunkView.swift b/GitClient/Views/Commit/ChunkView.swift
index c83c5b3..8753b21 100644
--- a/GitClient/Views/Commit/ChunkView.swift
+++ b/GitClient/Views/Commit/ChunkView.swift
@@ -10,7 +10,7 @@ import SwiftUI
 import Sourceful
 
 struct ChunkView: View {
-    @State var chunk: Chunk
+    var chunk: Chunk
     var filePath: String
     var lexer: Lexer {
         get {
@@ -20,7 +20,7 @@ struct ChunkView: View {
 
     var body: some View {
         SourceCodeTextEditor(
-            text: $chunk.raw,
+            text: .constant(chunk.raw),
             customization: .init(
                 didChangeText: {_ in },
                 insertionPointColor: { Sourceful.Color.white },
@@ -28,14 +28,14 @@ struct ChunkView: View {
                 textViewDidBeginEditing: { _ in },
                 theme: { FileDiffTheme() }
             ),
-            lineNumbers: $chunk.lineNumbers
+            lineNumbers: .constant(chunk.lineNumbers)
         )
     }
 }
 
 #Preview {
-    var filePath = "GitClient/Models/Language.swift"
-    var text = """
+    let filePath = "GitClient/Models/Language.swift"
+    let text = """
 @@ -127,9 +127,6 @@ public struct SourceCodeTextEditor: _ViewRepresentable {
      // Comment
      public func sizeThatFits(_ proposal: ProposedViewSize, nsView: SyntaxTextView, context: Context) -> CGSize? {
@@ -48,7 +48,7 @@ struct ChunkView: View {
      }
 """
 
-    var text2 = """
+    let text2 = """
 @@ -12,9 +12,6 @@ public struct SourceCodeTextEditor: _ViewRepresentable {
      // Comment
      public func sizeThatFits(_ proposal: ProposedViewSize, nsView: SyntaxTextView, context: Context) -> CGSize? {