diff --git a/profiler_gui/themes/default.css b/profiler_gui/themes/default.css
index 7570251..b4b6218 100644
--- a/profiler_gui/themes/default.css
+++ b/profiler_gui/themes/default.css
@@ -83,6 +83,8 @@ RoundProgressDialog#ReceiveProgress RoundProgressWidget RoundProgressIndicator[p
   qproperty-buttonColor: red; }
 
 MainWindow, QToolBar, QDialog {
+  border-style: solid;
+  border-color: white;
   background-color: white; }
 
 QToolTip {
diff --git a/profiler_gui/themes/default.scss b/profiler_gui/themes/default.scss
index a5b0beb..94036a7 100644
--- a/profiler_gui/themes/default.scss
+++ b/profiler_gui/themes/default.scss
@@ -145,6 +145,8 @@ RoundProgressDialog#ReceiveProgress RoundProgressWidget RoundProgressIndicator[p
 }
 
 MainWindow, QToolBar, QDialog {
+    border-style: solid;
+    border-color: white;
     background-color: $BackgroundColor;
 }