No update of editor if there is no multilayer on the canvas

GUI/coregui/Views/InfoWidgets/PySampleWidget.cpp

@@ -115,11 +115,13 @@ void PySampleWidget::setInstrumentModel(InstrumentModel *instrumentModel)
 
 void PySampleWidget::onModifiedRow(const QModelIndex &, int, int)
 {
+    if(m_sampleModel->getSampleMap().empty()) return;
     scheduleUpdate();
 }
 
 void PySampleWidget::onDataChanged(const QModelIndex &, const QModelIndex &)
 {
+    if(m_sampleModel->getSampleMap().empty()) return;
     scheduleUpdate();
 }
 

GUI/coregui/Views/SampleDesigner/DesignerHelper.cpp

@@ -253,7 +253,7 @@ int DesignerHelper::getPortFontSize()
 int DesignerHelper::getPythonEditorFontSize()
 {
 #ifdef Q_OS_MAC
-    return 12;
+    return 13;
 #else
     return 10;
 #endif