diff --git a/examples/BoundingBox.cpp b/examples/BoundingBox.cpp
index 98aa94d3..3d708dbd 100644
--- a/examples/BoundingBox.cpp
+++ b/examples/BoundingBox.cpp
@@ -256,10 +256,11 @@ struct UserExample : tvgexam::Example
             shape->moveTo(0, 0);
             shape->lineTo(150, 100);
             shape->lineTo(0, 100);
+            shape->close();
             shape->fill(255, 0, 255);
             shape->strokeWidth(30);
             shape->strokeFill(0, 255, 255);
-            shape->close();
+            shape->strokeJoin(tvg::StrokeJoin::Round);
 
             tvg::Matrix m = {1.8794f, -0.6840f, 0.0f, 0.6840f,  1.8794f, 0.0f, 0.0f, 0.0f, 1.0f};
             shape->transform(m);
diff --git a/src/renderer/tvgShape.h b/src/renderer/tvgShape.h
index 58ee4d01..2fff92cb 100644
--- a/src/renderer/tvgShape.h
+++ b/src/renderer/tvgShape.h
@@ -125,10 +125,15 @@ struct ShapeImpl : Shape
 
         //Stroke feathering
         if (stroking && rs.stroke) {
-            x -= rs.stroke->width * 0.5f;
-            y -= rs.stroke->width * 0.5f;
-            w += rs.stroke->width;
-            h += rs.stroke->width;
+            //Use geometric mean for feathering.
+            //Join, Cap wouldn't be considered. Generate stroke outline and compute bbox for accurate size?
+            auto sx = sqrt(m.e11 * m.e11 + m.e21 * m.e21);
+            auto sy = sqrt(m.e12 * m.e12 + m.e22 * m.e22);
+            auto feather = rs.stroke->width * sqrt(sx * sy);
+            x -= feather * 0.5f;
+            y -= feather * 0.5f;
+            w += feather;
+            h += feather;
         }
 
         pt4[0] = {x, y};