Fixes for scaling, and layout

app/HighDpiHelper.cs

@@ -0,0 +1,67 @@
+using System.Drawing.Drawing2D;
+
+public static class HighDpiHelper
+{
+    public static void AdjustControlImagesDpiScale(Control container, float baseScale = 2)
+    {
+        var dpiScale = GetDpiScale(container).Value;
+        AdjustControlImagesDpiScale(container.Controls, dpiScale / baseScale);
+    }
+
+    public static void AdjustButtonDpiScale(ButtonBase button, float dpiScale)
+    {
+        var image = button.Image;
+        
+        if (image == null)
+            return;
+
+        button.Image = ScaleImage(image, dpiScale);
+    }
+
+    private static void AdjustControlImagesDpiScale(Control.ControlCollection controls, float dpiScale)
+    {
+        foreach (Control control in controls)
+        {
+            var button = control as ButtonBase;
+            if (button != null)
+                AdjustButtonDpiScale(button, dpiScale);
+
+            AdjustControlImagesDpiScale(control.Controls, dpiScale);
+        }
+    }
+
+    public static Lazy<float> GetDpiScale(Control control)
+    {
+        return new Lazy<float>(() =>
+        {
+            using (var graphics = control.CreateGraphics())
+                return graphics.DpiX / 96.0f;
+        });
+    }
+
+    private static Image ScaleImage(Image image, float dpiScale)
+    {
+        var newSize = ScaleSize(image.Size, dpiScale);
+        var newBitmap = new Bitmap(newSize.Width, newSize.Height);
+
+        using (var g = Graphics.FromImage(newBitmap))
+        {
+            // According to this blog post http://blogs.msdn.com/b/visualstudio/archive/2014/03/19/improving-high-dpi-support-for-visual-studio-2013.aspx
+            // NearestNeighbor is more adapted for 200% and 200%+ DPI
+
+            var interpolationMode = InterpolationMode.HighQualityBicubic;
+            if (dpiScale >= 2.0f)
+                interpolationMode = InterpolationMode.NearestNeighbor;
+
+            g.InterpolationMode = interpolationMode;
+            g.DrawImage(image, new Rectangle(new Point(), newSize));
+        }
+
+        return newBitmap;
+    }
+
+    private static Size ScaleSize(Size size, float scale)
+    {
+        return new Size((int)(size.Width * scale), (int)(size.Height * scale));
+    }
+}