diff --git a/ui/debug.go b/ui/debug.go
index bdd7da9..ad28060 100644
--- a/ui/debug.go
+++ b/ui/debug.go
@@ -77,8 +77,9 @@ func NewDebugOverlay(root Control) *debugOverlay {
 
 func (o *debugOverlay) renderControl(ctx Context, control Control) {
 	renderer := ctx.Renderer()
-	// bounds := control.Bounds()
-	// renderer.Rectangle(bounds, o.boundsColor, 1)
+
+	currentColor := zntg.MustHexColor("#FF0000")
+	parentColor := zntg.MustHexColor("#0000FF")
 
 	var maxY float32
 	var renderHoverNode func(pos geom.PointF32, node *controlNode)
@@ -96,6 +97,10 @@ func (o *debugOverlay) renderControl(ctx Context, control Control) {
 		renderer.FillRectangle(pos.RectRel2D(nameTextureWidth, nameTextureHeight), color.Black)
 		renderer.DrawTexturePoint(nameTexture, pos)
 		childPos := pos.Add2D(nameTextureWidth+ctx.Style().Dimensions.Margin, 0)
+		if len(node.Children) == 0 {
+			renderer.Rectangle(node.Parent.Bounds, parentColor, 1)
+			renderer.Rectangle(node.Bounds, currentColor, 1)
+		}
 		for _, child := range node.Children {
 			if childPos.Y == maxY {
 				childPos.Y = maxY + nameTextureHeight
@@ -114,15 +119,18 @@ func (o *debugOverlay) renderControl(ctx Context, control Control) {
 }
 
 func createHoverNodes(hover geom.PointF32, control Control) *controlNode {
-	if !hover.In(control.Bounds()) {
+	bounds := control.Bounds()
+	if !hover.In(bounds) {
 		return nil
 	}
-	node := &controlNode{Name: controlName(control)}
+	node := &controlNode{Name: controlName(control), Bounds: bounds}
 	for _, child := range controlChildren(control) {
 		childNode := createHoverNodes(hover, child)
-		if childNode != nil {
-			node.Children = append(node.Children, childNode)
+		if childNode == nil {
+			continue
 		}
+		childNode.Parent = node
+		node.Children = append(node.Children, childNode)
 	}
 	return node
 }
@@ -147,5 +155,7 @@ func (o *debugOverlay) Shown() {}
 
 type controlNode struct {
 	Name     string
+	Bounds   geom.RectangleF32
+	Parent   *controlNode
 	Children []*controlNode
 }