diff --git a/UIs/BeetRoundWidgets/widgets/comboboxdelegate.h b/UIs/BeetRoundWidgets/widgets/comboboxdelegate.h
index 59a03c3..a79b5d8 100644
--- a/UIs/BeetRoundWidgets/widgets/comboboxdelegate.h
+++ b/UIs/BeetRoundWidgets/widgets/comboboxdelegate.h
@@ -2,9 +2,10 @@
 #define COMBOBOXDELEGATE_H
 
 #include <QStyledItemDelegate>
-
 class QStringListModel;
+
 class ComboboxDelegate : public QStyledItemDelegate {
+  // TODO move source code files into subfolder "widgets/delegate"
   Q_OBJECT
  public:
   explicit ComboboxDelegate(const QStringList items, QObject* parent = nullptr);
diff --git a/UIs/BeetRoundWidgets/widgets/spinboxdelegate.h b/UIs/BeetRoundWidgets/widgets/spinboxdelegate.h
index 1016640..a5e9920 100644
--- a/UIs/BeetRoundWidgets/widgets/spinboxdelegate.h
+++ b/UIs/BeetRoundWidgets/widgets/spinboxdelegate.h
@@ -4,6 +4,7 @@
 #include <QStyledItemDelegate>
 
 class SpinboxDelegate : public QStyledItemDelegate {
+  // TODO move source code files into subfolder "widgets/delegate"
   Q_OBJECT
  public:
   explicit SpinboxDelegate(QObject* parent = nullptr);