diff --git a/scalepicker.cpp b/scalepicker.cpp
--- a/scalepicker.cpp
+++ b/scalepicker.cpp
@@ -130,10 +130,17 @@ void ScalePicker::drawOverlay(QPainter* 
             int width = painter->device()->width();
             rect = QRect(0, firstPosPx, width, (currentPosPx-firstPosPx));
         }
+
+        painter->setPen(_pen);
         painter->drawRect(rect);
     }
 }
 
+void ScalePicker::setPen(QPen pen)
+{
+    _pen = pen;
+}
+
 double ScalePicker::position(QMouseEvent* mouseEvent)
 {
     double pos;