diff --git a/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodel.cpp b/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodel.cpp
index 34efac9f3d0..6349b7db30d 100644
--- a/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodel.cpp
+++ b/src/libs/modelinglib/qmt/diagram_scene/diagramscenemodel.cpp
@@ -88,7 +88,7 @@ public:
         Q_UNUSED(option)
         Q_UNUSED(widget)
 
-        QPen pen(QBrush(Qt::gray), 1.0, Qt::DotLine);
+        QPen pen(QBrush(Qt::lightGray), 1.0, Qt::DotLine);
         painter->setPen(pen);
         painter->drawLine(QLineF(0.0, 0.0, 20.0, 0.0));
         painter->drawLine(QLineF(0.0, 0.0, 0.0, 20.0));
diff --git a/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramview.cpp b/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramview.cpp
index ecc7fb327c1..2d23871f0bf 100644
--- a/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramview.cpp
+++ b/src/libs/modelinglib/qmt/diagram_widgets_ui/diagramview.cpp
@@ -151,8 +151,10 @@ void DiagramView::dropEvent(QDropEvent *event)
 
 void DiagramView::onSceneRectChanged(const QRectF &sceneRect)
 {
-    // TODO add some adjustment to all 4 sides?
-    setSceneRect(sceneRect);
+    // add some adjustment to all 4 sides
+    static const qreal ADJUSTMENT = 80;
+    QRectF rect = sceneRect.adjusted(-ADJUSTMENT, -ADJUSTMENT, ADJUSTMENT, ADJUSTMENT);
+    setSceneRect(rect);
 }
 
 } // namespace qmt