Show light and charcoal previews in README

README.md

@@ -2,6 +2,18 @@
 
 A portable C# / WPF website launcher for Windows.
 
+[**Download for Windows**](https://github.com/donishki/orbit-shortcuts/releases/latest) · [Features](#features) · [Build from source](#build)
+
+## Screenshots
+
+### Charcoal
+
+![Orbit in charcoal mode, showing website cards and the collection sidebar](docs/screenshots/orbit-dark.png)
+
+### Light
+
+![Orbit in light mode, showing website cards and the collection sidebar](docs/screenshots/orbit-light.png)
+
 ## Features
 
 - Website cards with automatic or custom icons

tests/ThemeChecks.cs

@@ -16,16 +16,26 @@ internal static class ThemeChecks
         foreach (var site in new[] { "https://github.com", "https://www.google.com" })
             Console.WriteLine("Live icon " + site + ": " + (WebsiteIcons.Fetch(site).GetAwaiter().GetResult() != null ? "loaded" : "fallback"));
         var app = new App(); app.InitializeComponent();
-        var window = new MainWindow();
+        SynchronizationContext.SetSynchronizationContext(new System.Windows.Threading.DispatcherSynchronizationContext());
+        var isolated = Path.Combine(Path.GetTempPath(), "OrbitPreview-" + Guid.NewGuid().ToString("N"));
+        var window = new MainWindow(new SettingsStore(@"Software\OrbitPreview-" + Guid.NewGuid().ToString("N"), Path.Combine(isolated, "absent.json"), isolated));
         var content = (FrameworkElement)window.Content;
+        window.WindowState = WindowState.Normal;
+        content.Width = 1100; content.Height = 680;
+        // Let asynchronous website icons finish without reading or altering the user's library.
+        var wait = new System.Windows.Threading.DispatcherFrame();
+        var timer = new System.Windows.Threading.DispatcherTimer { Interval = TimeSpan.FromSeconds(8) };
+        timer.Tick += (_, _) => { timer.Stop(); wait.Continue = false; };
+        timer.Start(); System.Windows.Threading.Dispatcher.PushFrame(wait);
         var output = Path.Combine(Path.GetTempPath(), "OrbitThemePreview"); Directory.CreateDirectory(output);
         foreach (var dark in new[] { false, true, false })
         {
             Theme.Apply(dark);
+            SetSwitch(content, dark);
             content.Measure(new Size(1100, 680)); content.Arrange(new Rect(0, 0, 1100, 680)); content.UpdateLayout();
             if (((SolidColorBrush)window.Background).Color != (Color)ColorConverter.ConvertFromString(dark ? "#202020" : "#FAF9F6")) throw new Exception("Window theme did not update");
             var bitmap = new RenderTargetBitmap(1100, 680, 96, 96, PixelFormats.Pbgra32);
-            var frame = new DrawingVisual(); using (var dc = frame.RenderOpen()) { dc.DrawRectangle(window.Background, null, new Rect(0,0,1100,680)); dc.DrawRectangle(new VisualBrush(content), null, new Rect(0,0,1100,680)); }
+            var frame = new DrawingVisual(); using (var dc = frame.RenderOpen()) { dc.DrawRectangle(window.Background, null, new Rect(0,0,1100,680)); dc.DrawRectangle(new VisualBrush(content) { ViewboxUnits = BrushMappingMode.Absolute, Viewbox = new Rect(0,0,1100,680) }, null, new Rect(0,0,1100,680)); }
             bitmap.Render(frame); var encoder = new PngBitmapEncoder(); encoder.Frames.Add(BitmapFrame.Create(bitmap));
             using var file = File.Create(Path.Combine(output, dark ? "dark.png" : "light.png")); encoder.Save(file);
             Console.WriteLine("PASS rendered " + (dark ? "dark" : "light") + " theme");
@@ -33,4 +43,9 @@ internal static class ThemeChecks
         Console.WriteLine(output);
         window.Close(); app.Shutdown();
     }
+    static void SetSwitch(DependencyObject parent, bool dark)
+    {
+        if (parent is CheckBox toggle && toggle.Content as string == "Dark mode") toggle.IsChecked = dark;
+        for (int index = 0; index < VisualTreeHelper.GetChildrenCount(parent); index++) SetSwitch(VisualTreeHelper.GetChild(parent, index), dark);
+    }
 }