Dev

.claude/settings.local.json

@@ -0,0 +1,11 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(dotnet build:*)",
+      "Bash(grep -E \"\\\\.\\(cs|xaml\\)$\")",
+      "Bash(gh issue view:*)",
+      "WebSearch",
+      "WebFetch(domain:raw.githubusercontent.com)"
+    ]
+  }
+}

Simple Icon File Maker/Simple Icon File Maker (Package)/Package.appxmanifest

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 
 <Package
   xmlns="http://schemas.microsoft.com/appx/manifest/foundation/windows10"
@@ -10,7 +10,7 @@
   <Identity
     Name="40087JoeFinApps.SimpleIconFileMaker"
     Publisher="CN=153F3B0F-BA3D-4964-8098-71AC78A1DF6A"
-    Version="1.15.1.0" />
+    Version="1.16.0.0" />
 
 
   <Properties>

Simple Icon File Maker/Simple Icon File Maker (Package)/Simple Icon File Maker (Package).wapproj

@@ -123,10 +123,10 @@
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.8.260209005">
+    <PackageReference Include="Microsoft.WindowsAppSDK" Version="1.8.260317003">
       <IncludeAssets>build</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.26100.7705">
+    <PackageReference Include="Microsoft.Windows.SDK.BuildTools" Version="10.0.28000.1721">
       <IncludeAssets>build</IncludeAssets>
     </PackageReference>
     <PackageReference Include="WinUIEx" Version="2.9.0" />

Simple Icon File Maker/Simple Icon File Maker/Constants/FileTypes.cs

@@ -4,11 +4,17 @@ namespace Simple_Icon_File_Maker.Constants;
 
 public static class FileTypes
 {
-    public static readonly HashSet<string> SupportedImageFormats = [".png", ".bmp", ".jpeg", ".jpg", ".ico"];
+    public static readonly HashSet<string> SupportedImageFormats = [".png", ".bmp", ".jpeg", ".jpg", ".ico", ".svg"];
+
+    public static readonly HashSet<string> SupportedDllFormats = [".dll", ".exe", ".mun"];
 
     public static bool IsSupportedImageFormat(this StorageFile file)
     {
         return SupportedImageFormats.Contains(file.FileType, StringComparer.OrdinalIgnoreCase);
     }
 
+    public static bool IsSupportedDllFormat(this StorageFile file)
+    {
+        return SupportedDllFormats.Contains(file.FileType, StringComparer.OrdinalIgnoreCase);
+    }
 }

Simple Icon File Maker/Simple Icon File Maker/Controls/PreviewImage.xaml.cs

@@ -5,7 +5,9 @@
 using Microsoft.UI.Xaml.Controls;
 using Microsoft.UI.Xaml.Hosting;
 using Microsoft.UI.Xaml.Media;
+using Microsoft.UI.Xaml.Media.Imaging;
 using System.Diagnostics;
+using System.Runtime.InteropServices.WindowsRuntime;
 using Windows.ApplicationModel.DataTransfer;
 using Windows.Foundation;
 using Windows.Storage;
@@ -21,18 +23,43 @@ public sealed partial class PreviewImage : UserControl
     private readonly StorageFile _imageFile;
     private readonly int _sideLength = 0;
 
-    public PreviewImage(StorageFile imageFile, int sideLength, string originalName)
+    public PreviewImage(StorageFile imageFile, int sideLength, string originalName, bool showCheckerBackground)
     {
         InitializeComponent();
         _imageFile = imageFile;
         _sideLength = sideLength;
+        ShowCheckerBackground = showCheckerBackground;
         ToolTipService.SetToolTip(this, $"{sideLength} x {sideLength}");
         OriginalName = originalName;
+        ActualThemeChanged += (_, _) =>
+        {
+            int size = isZooming ? ZoomedWidthSpace : _sideLength;
+            mainImageCanvas.Background = _showCheckerBackground
+                ? CreateCheckerBrush(size, _sideLength, ActualTheme)
+                : new SolidColorBrush(Colors.Transparent);
+        };
     }
 
     private bool isZooming = false;
+    private bool _showCheckerBackground = true;
     public int ZoomedWidthSpace = 100;
 
+    public bool ShowCheckerBackground
+    {
+        get => _showCheckerBackground;
+        set
+        {
+            if (value != _showCheckerBackground)
+            {
+                _showCheckerBackground = value;
+                int size = isZooming ? ZoomedWidthSpace : _sideLength;
+                mainImageCanvas.Background = _showCheckerBackground
+                    ? CreateCheckerBrush(size, _sideLength, ActualTheme)
+                    : new SolidColorBrush(Colors.Transparent);
+            }
+        }
+    }
+
     public bool ZoomPreview
     {
         get => isZooming;
@@ -41,9 +68,8 @@ public bool ZoomPreview
             if (value != isZooming)
             {
                 isZooming = value;
-                mainImageCanvas.Children.Clear();
+                LoadImageOnToCanvas();
                 InvalidateMeasure();
-                InvalidateArrange();
             }
         }
     }
@@ -52,17 +78,13 @@ protected override Size ArrangeOverride(Size finalSize)
     {
         double dim = Math.Min(finalSize.Width, finalSize.Height);
         mainImageCanvas.Arrange(new Rect(new Point((finalSize.Width - dim) / 2, (finalSize.Height - dim) / 2), new Size(dim, dim)));
-        LoadImageOnToCanvas();
         return finalSize;
     }
 
     protected override Size MeasureOverride(Size availableSize)
     {
-        double dim = Math.Min(availableSize.Width, availableSize.Height);
-        // smallerAvailableSize = (int)dim;
-        if (double.IsPositiveInfinity(dim))
-            dim = 3000;
-        return new Size(dim, dim);
+        int size = isZooming ? ZoomedWidthSpace : _sideLength;
+        return new Size(size, size);
     }
 
     private async void MenuFlyoutItem_Click(object sender, RoutedEventArgs e)
@@ -106,6 +128,12 @@ private void UserControl_Loaded(object sender, RoutedEventArgs e)
     private void LoadImageOnToCanvas()
     {
         mainImageCanvas.Children.Clear();
+
+        int size = isZooming ? ZoomedWidthSpace : _sideLength;
+        mainImageCanvas.Background = ShowCheckerBackground
+            ? CreateCheckerBrush(size, _sideLength, ActualTheme)
+            : new SolidColorBrush(Colors.Transparent);
+
         // from StackOverflow
         // user:
         // https://stackoverflow.com/users/403671/simon-mourier
@@ -128,10 +156,6 @@ private void LoadImageOnToCanvas()
         LoadedImageSurface image = LoadedImageSurface.StartLoadFromUri(new Uri(_imageFile.Path));
         brush.Surface = image;
 
-        int size = isZooming ? ZoomedWidthSpace : _sideLength;
-        Width = size;
-        Height = size;
-
         // set the visual size when the image has loaded
         image.LoadCompleted += (s, e) =>
         {
@@ -153,6 +177,42 @@ private void LoadImageOnToCanvas()
         mainImageCanvas.Children.Add(tempGrid);
     }
 
+    private static ImageBrush CreateCheckerBrush(int size, int baseSideLength, ElementTheme theme)
+    {
+        // idealTileSize targets ~8 px at the baseSideLength and scales proportionally for
+        // zoomed views.  NearestDivisor then rounds it to the closest exact divisor of
+        // 'size', guaranteeing size % tileSize == 0 — no partial tile, no sliver at the
+        // edge regardless of the canvas size or DPI scale.
+        int idealTileSize = Math.Max(1, (int)Math.Round(8.0 * size / baseSideLength));
+
+        WriteableBitmap bitmap = new(size, size);
+
+        // Light mode: #F0F0F0 / #C4C4C4  —  Dark mode: #404040 / #2A2A2A
+        bool isDark = theme == ElementTheme.Dark;
+        byte tileLight = isDark ? (byte)0x40 : (byte)0xF0;
+        byte tileDark = isDark ? (byte)0x2A : (byte)0xC4;
+
+        byte[] pixels = new byte[size * size * 4]; // BGRA format
+        for (int row = 0; row < size; row++)
+        {
+            for (int col = 0; col < size; col++)
+            {
+                bool isLightTile = ((row / idealTileSize) + (col / idealTileSize)) % 2 == 0;
+                byte val = isLightTile ? tileLight : tileDark;
+                int idx = (row * size + col) * 4;
+                pixels[idx] = val;     // B
+                pixels[idx + 1] = val; // G
+                pixels[idx + 2] = val; // R
+                pixels[idx + 3] = 255; // A
+            }
+        }
+
+        using Stream stream = bitmap.PixelBuffer.AsStream();
+        stream.Write(pixels, 0, pixels.Length);
+
+        return new ImageBrush { ImageSource = bitmap, Stretch = Stretch.Fill };
+    }
+
     private async void ImagePreview_DragStarting(UIElement sender, DragStartingEventArgs args)
     {
         DragOperationDeferral deferral = args.GetDeferral();

Simple Icon File Maker/Simple Icon File Maker/Controls/PreviewStack.xaml

@@ -13,11 +13,42 @@
             <RowDefinition Height="auto" />
             <RowDefinition Height="*" />
         </Grid.RowDefinitions>
-        <TextBlock
-            Name="FileNameText"
-            HorizontalAlignment="Center"
-            Style="{StaticResource CaptionTextBlockStyle}"
-            TextWrapping="WrapWholeWords" />
+        <Grid>
+            <Grid.ColumnDefinitions>
+                <ColumnDefinition Width="*" />
+                <ColumnDefinition Width="Auto" />
+            </Grid.ColumnDefinitions>
+            <TextBlock
+                Name="FileNameText"
+                HorizontalAlignment="Center"
+                VerticalAlignment="Center"
+                Style="{StaticResource CaptionTextBlockStyle}"
+                TextWrapping="WrapWholeWords" />
+            <DropDownButton
+                Name="SaveColumnButton"
+                Grid.Column="1"
+                Height="28"
+                Padding="6,0"
+                VerticalAlignment="Center"
+                ToolTipService.ToolTip="Save this icon"
+                Visibility="Collapsed">
+                <FontIcon FontSize="12" Glyph="&#xE74E;" />
+                <DropDownButton.Flyout>
+                    <MenuFlyout>
+                        <MenuFlyoutItem Click="SaveIconMenuItem_Click" Text="Save icon (.ico)">
+                            <MenuFlyoutItem.Icon>
+                                <FontIcon Glyph="&#xE74E;" />
+                            </MenuFlyoutItem.Icon>
+                        </MenuFlyoutItem>
+                        <MenuFlyoutItem Click="SaveAllImagesMenuItem_Click" Text="Save all images...">
+                            <MenuFlyoutItem.Icon>
+                                <FontIcon Glyph="&#xE78C;" />
+                            </MenuFlyoutItem.Icon>
+                        </MenuFlyoutItem>
+                    </MenuFlyout>
+                </DropDownButton.Flyout>
+            </DropDownButton>
+        </Grid>
         <StackPanel
             Name="PreviewStackPanel"
             Grid.Row="1"