diff --git a/preview/interfaces/BitmapPainter.cpp b/preview/interfaces/BitmapPainter.cpp
index c44d5eb..e280f7d 100644
--- a/preview/interfaces/BitmapPainter.cpp
+++ b/preview/interfaces/BitmapPainter.cpp
@@ -297,19 +297,26 @@ namespace hal
 
     void BitmapPainterCanonical::DrawBitmap(infra::Bitmap& bitmap, infra::Point position, const infra::Bitmap& sourceBitmap, infra::Region boundingBox)
     {
-        assert(bitmap.pixelFormat == sourceBitmap.pixelFormat);
         auto bitmapDestination = infra::Region(position, sourceBitmap.size);
         auto boundedDestination = bitmapDestination & boundingBox;
 
         if (!boundedDestination.Empty())
         {
             WaitUntilDrawingFinished();
-            for (auto y = boundedDestination.Top() - bitmapDestination.Top(); y != boundedDestination.Bottom() - bitmapDestination.Top(); ++y)
-                for (auto x = boundedDestination.Left() - bitmapDestination.Left(); x != boundedDestination.Right() - bitmapDestination.Left(); ++x)
-                {
-                    auto colour = sourceBitmap.PixelColour(infra::Point(x, y));
-                    DrawPixel(bitmap, bitmapDestination.TopLeft() + infra::Vector(x, y), colour);
-                }
+            if (bitmap.pixelFormat == infra::PixelFormat::blackandwhite)
+                for (auto y = boundedDestination.Top() - bitmapDestination.Top(); y != boundedDestination.Bottom() - bitmapDestination.Top(); ++y)
+                    for (auto x = boundedDestination.Left() - bitmapDestination.Left(); x != boundedDestination.Right() - bitmapDestination.Left(); ++x)
+                    {
+                        bool colour = sourceBitmap.BlackAndWhitePixel(infra::Point(x, y));
+                        DrawPixel(bitmap, bitmapDestination.TopLeft() + infra::Vector(x, y), colour);
+                    }
+            else
+                for (auto y = boundedDestination.Top() - bitmapDestination.Top(); y != boundedDestination.Bottom() - bitmapDestination.Top(); ++y)
+                    for (auto x = boundedDestination.Left() - bitmapDestination.Left(); x != boundedDestination.Right() - bitmapDestination.Left(); ++x)
+                    {
+                        auto colour = sourceBitmap.PixelColour(infra::Point(x, y));
+                        DrawPixel(bitmap, bitmapDestination.TopLeft() + infra::Vector(x, y), colour);
+                    }
         }
     }
 
diff --git a/preview/views/ViewRotating.cpp b/preview/views/ViewRotating.cpp
index 19be01d..34761f3 100644
--- a/preview/views/ViewRotating.cpp
+++ b/preview/views/ViewRotating.cpp
@@ -36,7 +36,8 @@ namespace services
         if (subView)
         {
             subView->ResetSize();
-            ResizeWithoutTrigger(infra::RotatedVectorInRegion(subView->ViewRegion().Size(), angle, rotatedRegion));
+            rotatedRegion = infra::RotatedRegionInRegion(subView->ViewRegion(), -angle, subView->ViewRegion());
+            ResizeWithoutTrigger(rotatedRegion.Size());
         }
         else
             ResizeWithoutTrigger(infra::Vector());
@@ -125,17 +126,17 @@ namespace services
 
     void ViewRotating::CanvasRotating::DrawBitmap(infra::Point position, const infra::Bitmap& sourceBitmap, infra::Region boundingBox)
     {
-        canvas.DrawBitmap(Rotated(position), sourceBitmap, Rotated(boundingBox));
+        canvas.DrawBitmap(Rotated(infra::Region(position, sourceBitmap.size)).TopLeft(), sourceBitmap, Rotated(boundingBox));
     }
 
     void ViewRotating::CanvasRotating::DrawTransparentBitmap(infra::Point position, const infra::Bitmap& sourceBitmap, uint32_t transparencyColour, infra::Region boundingBox)
     {
-        canvas.DrawTransparentBitmap(Rotated(position), sourceBitmap, transparencyColour, Rotated(boundingBox));
+        canvas.DrawTransparentBitmap(Rotated(infra::Region(position, sourceBitmap.size)).TopLeft(), sourceBitmap, transparencyColour, Rotated(boundingBox));
     }
 
     void ViewRotating::CanvasRotating::DrawIcon(infra::Point position, const infra::Bitmap& sourceBitmap, infra::Colour colour, infra::Region boundingBox)
     {
-        canvas.DrawIcon(Rotated(position), sourceBitmap, colour, Rotated(boundingBox));
+        canvas.DrawIcon(Rotated(infra::Region(position, sourceBitmap.size)).TopLeft(), sourceBitmap, colour, Rotated(boundingBox));
     }
 
     void ViewRotating::CanvasRotating::DrawString(infra::Point position, infra::BoundedConstString string, const infra::Font& font, infra::Colour colour, infra::RightAngle direction, infra::Region boundingBox)