private DrawingImage RenderLayers()
        {
            var renderLayers = GetRenderLayers();
            // Draw the current frame to the preview
            var keyboardRect = _deviceManager.ActiveKeyboard.KeyboardRectangle();
            var visual       = new DrawingVisual();

            using (var drawingContext = visual.RenderOpen())
            {
                // Setup the DrawingVisual's size
                drawingContext.PushClip(new RectangleGeometry(keyboardRect));
                drawingContext.DrawRectangle(new SolidColorBrush(Color.FromArgb(0, 0, 0, 0)), null, keyboardRect);

                // Draw the layers
                foreach (var layer in renderLayers)
                {
                    layer.Update(null, true, false);
                    if (layer.LayerType.ShowInEdtor)
                    {
                        layer.Draw(null, drawingContext, true, false);
                    }
                }

                // Get the selection color
                var accentColor = ThemeManager.DetectAppStyle(Application.Current)?.Item2?.Resources["AccentColor"];
                if (accentColor == null)
                {
                    var preview = new DrawingImage();
                    preview.Freeze();
                    KeyboardPreview = preview;
                    return(new DrawingImage());
                }

                var pen = new Pen(new SolidColorBrush((Color)accentColor), 0.4);

                // Draw the selection outline and resize indicator
                if (SelectedLayer != null && SelectedLayer.MustDraw())
                {
                    var layerRect = SelectedLayer.Properties.PropertiesRect();
                    // Deflate the rect so that the border is drawn on the inside
                    layerRect.Inflate(-0.2, -0.2);

                    // Draw an outline around the selected layer
                    drawingContext.DrawRectangle(null, pen, layerRect);
                    // Draw a resize indicator in the bottom-right
                    drawingContext.DrawLine(pen,
                                            new Point(layerRect.BottomRight.X - 1, layerRect.BottomRight.Y - 0.5),
                                            new Point(layerRect.BottomRight.X - 1.2, layerRect.BottomRight.Y - 0.7));
                    drawingContext.DrawLine(pen,
                                            new Point(layerRect.BottomRight.X - 0.5, layerRect.BottomRight.Y - 1),
                                            new Point(layerRect.BottomRight.X - 0.7, layerRect.BottomRight.Y - 1.2));
                    drawingContext.DrawLine(pen,
                                            new Point(layerRect.BottomRight.X - 0.5, layerRect.BottomRight.Y - 0.5),
                                            new Point(layerRect.BottomRight.X - 0.7, layerRect.BottomRight.Y - 0.7));
                }

                SelectedProfile?.RaiseDeviceDrawnEvent(new ProfileDeviceEventsArg(DrawType.Preview, null, true,
                                                                                  drawingContext));

                // Remove the clip
                drawingContext.Pop();
            }
            var drawnPreview = new DrawingImage(visual.Drawing);

            drawnPreview.Freeze();

            // Setup layers for the next frame
            if (_moduleModel.IsInitialized && ActiveWindowHelper.MainWindowActive)
            {
                _moduleModel.PreviewLayers = renderLayers;
            }

            return(drawnPreview);
        }