diff --git a/src/Renderer.cpp b/src/Renderer.cpp
index 9ee49bc4..c67e8922 100644
--- a/src/Renderer.cpp
+++ b/src/Renderer.cpp
@@ -113,6 +113,10 @@ void Renderer::drawLine(Line* line) const {
 }
 
 void Renderer::drawRectangle(Rect* rectangle) const {
+    float x = rectangle->getPosition().x;
+    float y = rectangle->getPosition().y;
+    float width = rectangle->getWidth();
+    float height = rectangle->getHeight();
     mColor fill_color = rectangle->getFillColor();
     mColor outline_color = rectangle->getOutlineColor();
 
@@ -124,12 +128,21 @@ void Renderer::drawRectangle(Rect* rectangle) const {
     Gdiplus::Matrix original;
     graphics.GetTransform(&original);
     applyTransform(rectangle->getTransforms());
-    graphics.FillRectangle(&RectFill, rectangle->getPosition().x,
-                           rectangle->getPosition().y, rectangle->getWidth(),
-                           rectangle->getHeight());
-    graphics.DrawRectangle(&RectOutline, rectangle->getPosition().x,
-                           rectangle->getPosition().y, rectangle->getWidth(),
-                           rectangle->getHeight());
+    if (rectangle->getRadius().x != 0 || rectangle->getRadius().y != 0) {
+        float dx = rectangle->getRadius().x * 2;
+        float dy = rectangle->getRadius().y * 2;
+        Gdiplus::GraphicsPath path;
+        path.AddArc(x, y, dx, dy, 180, 90);
+        path.AddArc(x + width - dx, y, dx, dy, 270, 90);
+        path.AddArc(x + width - dx, y + height - dy, dx, dy, 0, 90);
+        path.AddArc(x, y + height - dy, dx, dy, 90, 90);
+        path.CloseFigure();
+        graphics.FillPath(&RectFill, &path);
+        graphics.DrawPath(&RectOutline, &path);
+    } else {
+        graphics.FillRectangle(&RectFill, x, y, width, height);
+        graphics.DrawRectangle(&RectOutline, x, y, width, height);
+    }
     graphics.SetTransform(&original);
 }
 
diff --git a/src/main.cpp b/src/main.cpp
index 38d4d9bb..14620855 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -11,21 +11,21 @@
 
 using namespace rapidxml;
 
-LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
+LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);
+
+Parser* parser = nullptr;
 
 void OnPaint(HDC hdc, const std::string& filePath) {
     Gdiplus::Graphics graphics(hdc);
-
-    Parser* parser = Parser::getInstance(filePath);
+    if (!parser) {
+        parser = Parser::getInstance(filePath);
+    }
     Renderer* renderer = Renderer::getInstance(graphics);
     SVGElement* root = parser->getRoot();
     Group* group = dynamic_cast< Group* >(root);
     group->render(*renderer);
-    delete parser;
 }
 
-LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
-
 INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow) {
     HWND hWnd;
     MSG msg;
@@ -69,6 +69,7 @@ INT WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, PSTR, INT iCmdShow) {
         DispatchMessage(&msg);
     }
 
+    if (parser) delete parser;
     Gdiplus::GdiplusShutdown(gdiplusToken);
     return msg.wParam;
 }
@@ -77,14 +78,14 @@ LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam,
                          LPARAM lParam) {
     HDC hdc;
     PAINTSTRUCT ps;
-    std::string filePath = "";
+    std::string filePath;
+    if (__argc > 1) {
+        filePath = __argv[1];
+    }
 
     switch (message) {
         case WM_PAINT:
             hdc = BeginPaint(hWnd, &ps);
-            if (__argc > 1) {
-                filePath = __argv[1];
-            }
             OnPaint(hdc, filePath);
             EndPaint(hWnd, &ps);
             return 0;