diff --git a/resources/themes/Blend of Gray/style.qss b/resources/themes/Blend of Gray/style.qss
index 85ac8590eca4..8227d40a6fc2 100644
--- a/resources/themes/Blend of Gray/style.qss	
+++ b/resources/themes/Blend of Gray/style.qss	
@@ -1032,3 +1032,7 @@ QWidget#QgsRendererMeshPropsWidgetBase QTabWidget#mStyleOptionsTab QTabBar::tab
 QWidget#QgsRasterCalcDialogBase QWidget#mOperatorsGroupBox QPushButton {
     min-width:2.3em;
 }
+
+QFrame#mUserInputContainer { 
+    background-color: @background;
+}
diff --git a/resources/themes/Night Mapping/style.qss b/resources/themes/Night Mapping/style.qss
index b6c2c3eae998..2c6ad49a058c 100644
--- a/resources/themes/Night Mapping/style.qss	
+++ b/resources/themes/Night Mapping/style.qss	
@@ -1069,3 +1069,7 @@ QWidget#QgsRendererMeshPropsWidgetBase QTabWidget#mStyleOptionsTab QTabBar::tab
 QWidget#QgsRasterCalcDialogBase QWidget#mOperatorsGroupBox QPushButton {
     min-width:2.3em;
 }
+
+QFrame#mUserInputContainer { 
+    background-color: @background;
+}
diff --git a/src/gui/qgsuserinputwidget.cpp b/src/gui/qgsuserinputwidget.cpp
index 95b67ef0d1d3..998032285ff6 100644
--- a/src/gui/qgsuserinputwidget.cpp
+++ b/src/gui/qgsuserinputwidget.cpp
@@ -23,6 +23,7 @@ QgsUserInputWidget::QgsUserInputWidget( QWidget *parent )
   //TODO add title tr( "User Input Panel" )
 
   QFrame *f = new QFrame();
+  f->setObjectName( QStringLiteral( "mUserInputContainer" ) );
 
   QPalette pal = palette();
   pal.setBrush( backgroundRole(), pal.window() );