use new collection initialization operator

IrdLibraryClient/Compression/CompressionMessageHandler.cs

@@ -4,7 +4,7 @@ public class CompressionMessageHandler : DelegatingHandler
 {
     public ICollection<ICompressor> Compressors { get; }
     public static readonly string PostCompressionFlag = "X-Set-Content-Encoding";
-    public static readonly string[] DefaultContentEncodings = { "gzip", "deflate" };
+    public static readonly string[] DefaultContentEncodings = ["gzip", "deflate"];
     public static readonly string DefaultAcceptEncodings = "gzip, deflate";
 
     private bool isServer;

IrdLibraryClient/IrdClient.cs

@@ -35,13 +35,13 @@ protected virtual string GetDownloadLink(string irdFilename)
             catch (Exception e)
             {
                 Log.Warn(e, "Failed to make API call to IRD Library");
-                return new();
+                return [];
             }
         }
         catch (Exception e)
         {
             Log.Error(e);
-            return new();
+            return [];
         }
     }
 

IrdLibraryClient/IrdFormat/Ird.cs

@@ -18,7 +18,7 @@ public class Ird
     public byte RegionCount;
     public List<byte[]> RegionMd5Checksums = null!; // 16 each
     public int FileCount;
-    public List<IrdFile> Files = new();
+    public List<IrdFile> Files = [];
     public int Unknown; // always 0?
     public byte[]? Pic; // 115, v9 only?
     public byte[] Data1 = null!; // 16

Ps3DiscDumper/Dumper.cs

@@ -52,8 +52,8 @@ public partial class Dumper: IDisposable
     private byte[] discSfbData;
     private static readonly Dictionary<string, ImmutableArray<byte>> Detectors = new()
     {
-        [@"\PS3_GAME\LICDIR\LIC.DAT"] = "PS3LICDA"u8.ToImmutableArray(),
-        [@"\PS3_GAME\USRDIR\EBOOT.BIN"] = "SCE"u8.ToArray().Concat(new byte[] { 0, 0, 0, 0, 2 }).ToImmutableArray(),
+        [@"\PS3_GAME\LICDIR\LIC.DAT"] = [.."PS3LICDA"u8],
+        [@"\PS3_GAME\USRDIR\EBOOT.BIN"] = [.."SCE"u8, 0, 0, 0, 0, 2],
     };
     private byte[] detectionSector;
     private ImmutableArray<byte> detectionBytesExpected;
@@ -112,7 +112,7 @@ public long CurrentSector
         get
         {
             var tmp = Decrypter?.SectorPosition;
-            if (tmp == null)
+            if (tmp is null)
                 return currentSector;
             return currentSector = tmp.Value;
         }
@@ -246,7 +246,7 @@ private List<string> EnumeratePhysicalDevicesMacOs()
     private string CheckDiscSfb(byte[] discSfbData)
     {
         var sfb = SfbReader.Parse(discSfbData);
-        var flags = new HashSet<char>(sfb.KeyEntries.FirstOrDefault(e => e.Key == "HYBRID_FLAG")?.Value?.ToCharArray() ?? Array.Empty<char>());
+        var flags = new HashSet<char>(sfb.KeyEntries.FirstOrDefault(e => e.Key == "HYBRID_FLAG")?.Value?.ToCharArray() ?? []);
         Log.Debug($"Disc flags: {string.Concat(flags)}");
         if (!flags.Contains('g'))
             Log.Warn("Disc is not a game disc");

Ps3DiscDumper/Settings.cs

@@ -32,7 +32,7 @@ public Settings() { }
         (false, false) => BdmvFolders.Concat(Ps3UpdateFolder).ToArray(),
         (false, true) => BdmvFolders,
         (true, false) => Ps3UpdateFolder,
-        _ => Array.Empty<string>(),
+        _ => [],
     };
 
     private static StringComparison Comparison => OperatingSystem.IsWindows() ? StringComparison.OrdinalIgnoreCase : StringComparison.Ordinal;

Ps3DiscDumper/Sfb/Sfb.cs

@@ -9,7 +9,7 @@ public class Sfb
     public short VersionMajor;
     public short VersionMinor;
     public byte[] Unknown1; // 0x18
-    public readonly List<SfbKeyEntry> KeyEntries = new();
+    public readonly List<SfbKeyEntry> KeyEntries = [];
 }
 
 public class SfbKeyEntry

Ps3DiscDumper/Utils/HexExtensions.cs

@@ -12,13 +12,13 @@ public static byte[] ToByteArray(this string hexString)
             return null;
 
         if (hexString.Length == 0)
-            return new byte[0];
+            return [];
 
         if (hexString.Length % 2 != 0)
             throw new FormatException("Not a valid hex string");
 
         var result = new byte[hexString.Length / 2];
-        for (int i = 0; i < hexString.Length; i += 2)
+        for (var i = 0; i < hexString.Length; i += 2)
             result[i / 2] = byte.Parse(hexString.Substring(i, 2), NumberStyles.HexNumber);
         return result;
     }

Ps3DiscDumper/Utils/PatternFormatter.cs

@@ -7,11 +7,13 @@ namespace Ps3DiscDumper.Utils;
 
 public static class PatternFormatter
 {
-    private static readonly char[] InvalidChars = Path.GetInvalidFileNameChars()
-        .Concat(Path.GetInvalidPathChars())
-        .Concat(new[] { ':', '/', '\\', '?', '*', '<', '>', '|' })
-        .Distinct()
-        .ToArray();
+    private static readonly char[] InvalidChars = [
+        ..((char[])[
+            ..Path.GetInvalidFileNameChars(),
+            ..Path.GetInvalidPathChars(),
+            ':', '/', '\\', '?', '*', '<', '>', '|'
+        ]).Distinct()
+    ];
 
     public static string Format(string pattern, NameValueCollection items)
     {

UI.Avalonia/App.axaml.cs

@@ -17,11 +17,11 @@ namespace UI.Avalonia;
 public partial class App : Application
 {
     private static readonly WindowTransparencyLevel[] DesiredTransparencyHints =
-    {
+    [
         WindowTransparencyLevel.Mica,
         WindowTransparencyLevel.AcrylicBlur,
         WindowTransparencyLevel.None,
-    };
+    ];
 
     private readonly Lazy<bool> isMicaCapable = new(() =>
         Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime { MainWindow: Window w }