diff --git a/UEFITool/uefitool.cpp b/UEFITool/uefitool.cpp
index 4a79155..0522483 100644
--- a/UEFITool/uefitool.cpp
+++ b/UEFITool/uefitool.cpp
@@ -168,14 +168,23 @@ void UEFITool::init()
     ui->builderMessagesListWidget->installEventFilter(this);
 
     // Switch default window style to Fusion on Qt6 Windows builds
-    // TODO: remove this once default style gains dark theme support
-#if defined Q_OS_WIN and QT_VERSION_MAJOR >= 6
-    QSettings settings("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize", QSettings::NativeFormat);
-    if (settings.value("AppsUseLightTheme", 1).toInt() == 0) {
-        QApplication::setStyle(QStyleFactory::create("Fusion"));
-        QApplication::setPalette(QApplication::style()->standardPalette());
+    
+#if QT_VERSION_MAJOR >= 6
+#if defined Q_OS_OSX
+    const QPalette palette = QApplication::palette();
+    const QColor& color = palette.color(QPalette::Active, QPalette::Base);
+    if (color.lightness() < 127) { // TreeView has dark background
         model->setMarkingDarkMode(true);
     }
+#elif defined Q_OS_WIN
+    QSettings settings("HKEY_CURRENT_USER\\Software\\Microsoft\\Windows\\CurrentVersion\\Themes\\Personalize", QSettings::NativeFormat);
+    if (settings.value("AppsUseLightTheme", 1).toInt() == 0) {
+        model->setMarkingDarkMode(true);
+        // TODO: remove this once default style gains dark theme support
+        QApplication::setStyle(QStyleFactory::create("Fusion"));
+        QApplication::setPalette(QApplication::style()->standardPalette());
+    }
+#endif
 #endif
 }
 
diff --git a/UEFITool/uefitool.h b/UEFITool/uefitool.h
index 7c68ab0..5533a3e 100644
--- a/UEFITool/uefitool.h
+++ b/UEFITool/uefitool.h
@@ -27,6 +27,7 @@
 #include <QMenu>
 #include <QMessageBox>
 #include <QMimeData>
+#include <QPalette>
 #include <QPlainTextEdit>
 #include <QProcess>
 #include <QSettings>