diff --git a/skins/fluent2/QskFluent2Skin.cpp b/skins/fluent2/QskFluent2Skin.cpp
index cb960022..f589e83a 100644
--- a/skins/fluent2/QskFluent2Skin.cpp
+++ b/skins/fluent2/QskFluent2Skin.cpp
@@ -946,8 +946,8 @@ void Editor::setupVirtualKeyboard()
     setPadding( Q::Panel, 8 );
 }
 
-QskFluent2Theme::QskFluent2Theme( Theme lightness )
-    : QskFluent2Theme( lightness,
+QskFluent2Theme::QskFluent2Theme( QskSkin::ColorScheme colorScheme )
+    : QskFluent2Theme( colorScheme,
                         { // default Fluent accent colors:
                           0xff98ecfe,
                           0xff60ccfe,
@@ -960,10 +960,10 @@ QskFluent2Theme::QskFluent2Theme( Theme lightness )
 {
 }
 
-QskFluent2Theme::QskFluent2Theme( Theme theme,
+QskFluent2Theme::QskFluent2Theme( QskSkin::ColorScheme colorScheme,
     const std::array< QRgb, NumAccentColors >& accentColors )
 {
-    if( theme == Light )
+    if( colorScheme == QskSkin::Light )
     {
         // Fill color:
 
@@ -1065,7 +1065,7 @@ QskFluent2Theme::QskFluent2Theme( Theme theme,
         // ### should actually be drawn twice with different values:
         shadow.dialog = { QskShadowMetrics( 0, 21, QPointF( 0, 2 ) ), rgbGray( 0, 0.1474 ) };
     }
-    else if( theme == Dark )
+    else if( colorScheme == QskSkin::Dark )
     {
         // Fill color:
 
diff --git a/skins/fluent2/QskFluent2Skin.h b/skins/fluent2/QskFluent2Skin.h
index 034f0751..826eee34 100644
--- a/skins/fluent2/QskFluent2Skin.h
+++ b/skins/fluent2/QskFluent2Skin.h
@@ -18,12 +18,6 @@
 class QSK_FLUENT2_EXPORT QskFluent2Theme
 {
   public:
-    enum Theme
-    {
-        Light,
-        Dark
-    };
-
     enum AccentColors
     {
         AccentLight3,
@@ -37,8 +31,8 @@ class QSK_FLUENT2_EXPORT QskFluent2Theme
         NumAccentColors
     };
 
-    QskFluent2Theme( Theme );
-    QskFluent2Theme( Theme, const std::array< QRgb, NumAccentColors >& );
+    QskFluent2Theme( QskSkin::ColorScheme );
+    QskFluent2Theme( QskSkin::ColorScheme, const std::array< QRgb, NumAccentColors >& );
 
     typedef std::array< QRgb, 2 > BorderGradient;
 
diff --git a/skins/fluent2/QskFluent2SkinFactory.cpp b/skins/fluent2/QskFluent2SkinFactory.cpp
index 99cfaf55..4d015c4b 100644
--- a/skins/fluent2/QskFluent2SkinFactory.cpp
+++ b/skins/fluent2/QskFluent2SkinFactory.cpp
@@ -27,12 +27,12 @@ QskSkin* QskFluent2SkinFactory::createSkin( const QString& skinName )
 {
     if ( QString::compare( skinName, fluent2LightSkinName, Qt::CaseInsensitive ) == 0 )
     {
-        QskFluent2Theme theme( QskFluent2Theme::Light );
+        QskFluent2Theme theme( QskSkin::Light );
         return new QskFluent2Skin( theme );
     }
     else if ( QString::compare( skinName, fluent2DarkSkinName, Qt::CaseInsensitive ) == 0 )
     {
-        QskFluent2Theme theme( QskFluent2Theme::Dark );
+        QskFluent2Theme theme( QskSkin::Dark );
         return new QskFluent2Skin( theme );
     }
 
diff --git a/skins/material3/QskMaterial3Skin.cpp b/skins/material3/QskMaterial3Skin.cpp
index b2c9e1b2..8f456dcf 100644
--- a/skins/material3/QskMaterial3Skin.cpp
+++ b/skins/material3/QskMaterial3Skin.cpp
@@ -54,6 +54,7 @@
 
 #include <QGuiApplication>
 #include <QScreen>
+#include <QStyleHints>
 
 static const int qskDuration = 150;
 
@@ -1192,8 +1193,8 @@ void Editor::setupSubWindow()
 
 }
 
-QskMaterial3Theme::QskMaterial3Theme( Lightness lightness )
-    : QskMaterial3Theme( lightness,
+QskMaterial3Theme::QskMaterial3Theme( QskSkin::ColorScheme colorScheme )
+    : QskMaterial3Theme( colorScheme,
                         { // default Material colors:
                         0xff6750A4,
                         0xff625B71,
@@ -1205,11 +1206,11 @@ QskMaterial3Theme::QskMaterial3Theme( Lightness lightness )
 {
 }
 
-QskMaterial3Theme::QskMaterial3Theme( Lightness lightness,
+QskMaterial3Theme::QskMaterial3Theme( QskSkin::ColorScheme colorScheme,
         std::array< QskHctColor, NumPaletteTypes > palettes )
     : m_palettes( palettes )
 {
-    if ( lightness == Light )
+    if ( colorScheme == QskSkin::Light )
     {
         primary = m_palettes[ Primary ].toned( 40 ).rgb();
         onPrimary = m_palettes[ Primary ].toned( 100 ).rgb();
@@ -1243,7 +1244,7 @@ QskMaterial3Theme::QskMaterial3Theme( Lightness lightness,
 
         shadow = m_palettes[ Neutral ].toned( 0 ).rgb();
     }
-    else if ( lightness == Dark )
+    else if ( colorScheme == QskSkin::Dark )
     {
         primary = m_palettes[ Primary ].toned( 80 ).rgb();
         onPrimary = m_palettes[ Primary ].toned( 20 ).rgb();
diff --git a/skins/material3/QskMaterial3Skin.h b/skins/material3/QskMaterial3Skin.h
index f6fda892..ce36e9bd 100644
--- a/skins/material3/QskMaterial3Skin.h
+++ b/skins/material3/QskMaterial3Skin.h
@@ -18,12 +18,6 @@
 class QSK_MATERIAL3_EXPORT QskMaterial3Theme
 {
   public:
-    enum Lightness
-    {
-        Light,
-        Dark
-    };
-
     enum PaletteType
     {
         Primary,
@@ -36,8 +30,8 @@ class QSK_MATERIAL3_EXPORT QskMaterial3Theme
         NumPaletteTypes
     };
 
-    QskMaterial3Theme( Lightness );
-    QskMaterial3Theme( Lightness, std::array< QskHctColor, NumPaletteTypes > );
+    QskMaterial3Theme( QskSkin::ColorScheme );
+    QskMaterial3Theme( QskSkin::ColorScheme, std::array< QskHctColor, NumPaletteTypes > );
 
     QRgb primary;
     QRgb primary8; // ### rename to primaryHovered or so?
diff --git a/skins/material3/QskMaterial3SkinFactory.cpp b/skins/material3/QskMaterial3SkinFactory.cpp
index cb08a5c6..f65f669c 100644
--- a/skins/material3/QskMaterial3SkinFactory.cpp
+++ b/skins/material3/QskMaterial3SkinFactory.cpp
@@ -27,12 +27,12 @@ QskSkin* QskMaterial3SkinFactory::createSkin( const QString& skinName )
 {
     if ( QString::compare( skinName, materialLightSkinName, Qt::CaseInsensitive ) == 0 )
     {
-        QskMaterial3Theme theme( QskMaterial3Theme::Light );
+        QskMaterial3Theme theme( QskSkin::Light );
         return new QskMaterial3Skin( theme );
     }
     else if ( QString::compare( skinName, materialDarkSkinName, Qt::CaseInsensitive ) == 0 )
     {
-        QskMaterial3Theme theme( QskMaterial3Theme::Dark );
+        QskMaterial3Theme theme( QskSkin::Dark );
         return new QskMaterial3Skin( theme );
     }
 
diff --git a/src/controls/QskSkin.h b/src/controls/QskSkin.h
index 982ed2a3..b02facbb 100644
--- a/src/controls/QskSkin.h
+++ b/src/controls/QskSkin.h
@@ -46,6 +46,16 @@ class QSK_EXPORT QskSkin : public QObject
 
     Q_ENUM( SkinFontRole )
 
+#if 1
+    // Use Qt::ColorScheme once minimum version is Qt 6.5
+    enum ColorScheme
+    {
+        Unknown,
+        Light,
+        Dark
+    };
+#endif
+
     QskSkin( QObject* parent = nullptr );
     ~QskSkin() override;