diff --git a/d2renderers/d2svg/d2svg.go b/d2renderers/d2svg/d2svg.go
index 67db074c9..493617db3 100644
--- a/d2renderers/d2svg/d2svg.go
+++ b/d2renderers/d2svg/d2svg.go
@@ -1192,10 +1192,15 @@ func drawShape(writer, appendixWriter io.Writer, diagramHash string, targetShape
 		}
 	}
 
-	// to examine GetInsidePlacement
-	// padX, padY := s.GetDefaultPadding()
-	// innerTL := s.GetInsidePlacement(s.GetInnerBox().Width, s.GetInnerBox().Height, padX, padY)
-	// fmt.Fprint(writer, renderOval(&innerTL, 5, 5, "fill:red;"))
+	// to examine shape's innerBox
+	innerBox := s.GetInnerBox()
+	el := d2themes.NewThemableElement("rect")
+	el.X = float64(innerBox.TopLeft.X)
+	el.Y = float64(innerBox.TopLeft.Y)
+	el.Width = float64(innerBox.Width)
+	el.Height = float64(innerBox.Height)
+	el.Style = "fill:rgba(255,0,0,0.5);"
+	fmt.Fprint(writer, el.Render())
 
 	// Closes the class=shape
 	fmt.Fprint(writer, `</g>`)