diff --git a/src/gui/uithememanager.cpp b/src/gui/uithememanager.cpp
index 4319d3c28..61f2276fc 100644
--- a/src/gui/uithememanager.cpp
+++ b/src/gui/uithememanager.cpp
@@ -47,16 +47,9 @@ namespace
 {
     bool isDarkTheme()
     {
-        switch (qApp->styleHints()->colorScheme())
-        {
-        case Qt::ColorScheme::Dark:
-            return true;
-        case Qt::ColorScheme::Light:
-            return false;
-        default:
-            // fallback to custom method
-            return (qApp->palette().color(QPalette::Active, QPalette::Base).lightness() < 127);
-        }
+        const QPalette palette = qApp->palette();
+        const QColor &color = palette.color(QPalette::Active, QPalette::Base);
+        return (color.lightness() < 127);
     }
 }