Crash on Batch Background change

[fubaWoW]

1. Your operating system version: Windows 10 x64 21H1 (Build 19043.1466)
3. Batch Shortcut Operations -> Select All -> Amend Background Colors
4. Below

TileIconifier Version: v3.1.1.2 - x64
OS Version: 10.0.19043.0 - x64
Administrator?: Yes

System.NullReferenceException: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.
   bei TileIconifier.Core.Utilities.ImageUtils.ScaleImage(Image image, Int32 maxWidth, Int32 maxHeight) in C:\Users\mihal\Documents\GitHub\TileIconifier\TileIconifier.Core\Utilities\ImageUtils.cs:Zeile 160.
   bei TileIconifier.Core.TileIconify.TileIcon.BuildIcon(String filePath, Int32 width, Int32 height, Byte[] imageBytes, Int32 imageWidth, Int32 imageHeight, Int32 imageX, Int32 imageY, ColorSelection tileIconifierColorSelection, String backgroundColor) in C:\Users\mihal\Documents\GitHub\TileIconifier\TileIconifier.Core\TileIconify\TileIcon.cs:Zeile 201.
   bei TileIconifier.Core.TileIconify.TileIcon.BuildShortcutItemIcon(String fullIconPath, Size outputSize, ShortcutItemImage shortcutItemImage, XyRatio xyRatio, ColorSelection tileIconifierColorSelection, String backgroundColor) in C:\Users\mihal\Documents\GitHub\TileIconifier\TileIconifier.Core\TileIconify\TileIcon.cs:Zeile 179.
   bei TileIconifier.Core.TileIconify.TileIcon.SaveIcons() in C:\Users\mihal\Documents\GitHub\TileIconifier\TileIconifier.Core\TileIconify\TileIcon.cs:Zeile 163.
   bei TileIconifier.Core.TileIconify.TileIcon.RunIconify() in C:\Users\mihal\Documents\GitHub\TileIconifier\TileIconifier.Core\TileIconify\TileIcon.cs:Zeile 55.
   bei TileIconifier.Forms.Main.FrmBatchShortcut.<>c__DisplayClass12_0.<btnBatchAmendBackgroundColor_Click>b__0(ShortcutItem item)
   bei TileIconifier.Forms.Main.FrmBatchShortcut.<>c__DisplayClass14_0.<RunBulkAction>b__0(Object sender, DoWorkEventArgs args)
   bei TileIconifier.Utilities.FormUtils.<>c__DisplayClass1_0.<DoBackgroundWorkWithSplash>b__0()
   bei System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   bei System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
   bei System.Threading.ThreadHelper.ThreadStart()