1 files changed, 41 insertions, 0 deletions
diff --git a/src/Ryujinx.Ava/UI/Applet/AvaloniaHostUITheme.cs b/src/Ryujinx.Ava/UI/Applet/AvaloniaHostUITheme.cs
new file mode 100644
index 00000000..016fb484
--- /dev/null
+++ b/src/Ryujinx.Ava/UI/Applet/AvaloniaHostUITheme.cs
@@ -0,0 +1,41 @@
+using Avalonia.Media;
+using Ryujinx.Ava.UI.Windows;
+using Ryujinx.HLE.UI;
+using System;
+
+namespace Ryujinx.Ava.UI.Applet
+{
+    class AvaloniaHostUITheme : IHostUITheme
+    {
+        public AvaloniaHostUITheme(MainWindow parent)
+        {
+            FontFamily = OperatingSystem.IsWindows() && OperatingSystem.IsWindowsVersionAtLeast(10, 0, 22000) ? "Segoe UI Variable" : parent.FontFamily.Name;
+            DefaultBackgroundColor = BrushToThemeColor(parent.Background);
+            DefaultForegroundColor = BrushToThemeColor(parent.Foreground);
+            DefaultBorderColor = BrushToThemeColor(parent.BorderBrush);
+            SelectionBackgroundColor = BrushToThemeColor(parent.ViewControls.SearchBox.SelectionBrush);
+            SelectionForegroundColor = BrushToThemeColor(parent.ViewControls.SearchBox.SelectionForegroundBrush);
+        }
+
+        public string FontFamily { get; }
+
+        public ThemeColor DefaultBackgroundColor { get; }
+        public ThemeColor DefaultForegroundColor { get; }
+        public ThemeColor DefaultBorderColor { get; }
+        public ThemeColor SelectionBackgroundColor { get; }
+        public ThemeColor SelectionForegroundColor { get; }
+
+        private static ThemeColor BrushToThemeColor(IBrush brush)
+        {
+            if (brush is SolidColorBrush solidColor)
+            {
+                return new ThemeColor((float)solidColor.Color.A / 255,
+                    (float)solidColor.Color.R / 255,
+                    (float)solidColor.Color.G / 255,
+                    (float)solidColor.Color.B / 255);
+            }
+
+            return new ThemeColor();
+        }
+    }
+}