diff --git a/src/platformtheme/kwaylandintegration.h b/src/platformtheme/kwaylandintegration.h
--- a/src/platformtheme/kwaylandintegration.h
+++ b/src/platformtheme/kwaylandintegration.h
@@ -22,6 +22,8 @@
 
 #include <QObject>
 
+class QWindow;
+
 namespace KWayland
 {
 namespace Client
@@ -41,6 +43,7 @@
     bool eventFilter(QObject *watched, QEvent *event) Q_DECL_OVERRIDE;
 
 private:
+    void installColorScheme(QWindow *w);
     KWayland::Client::ServerSideDecorationManager *m_decoration;
 };
 
diff --git a/src/platformtheme/kwaylandintegration.cpp b/src/platformtheme/kwaylandintegration.cpp
--- a/src/platformtheme/kwaylandintegration.cpp
+++ b/src/platformtheme/kwaylandintegration.cpp
@@ -19,16 +19,19 @@
  */
 #include "kwaylandintegration.h"
 
-#include <QCoreApplication>
+#include <QGuiApplication>
 #include <QPlatformSurfaceEvent>
+#include <qpa/qplatformnativeinterface.h>
 
 #include <KWayland/Client/connection_thread.h>
 #include <KWayland/Client/registry.h>
 #include <KWayland/Client/surface.h>
 #include <KWayland/Client/server_decoration.h>
 
 using namespace KWayland::Client;
 
+static const QByteArray s_schemePropertyName = QByteArrayLiteral("KDE_COLOR_SCHEME_PATH");
+
 KWaylandIntegration::KWaylandIntegration()
     : QObject()
     , m_decoration(Q_NULLPTR)
@@ -73,6 +76,11 @@
         if (auto e = dynamic_cast<QPlatformSurfaceEvent*>(event)) {
             switch (e->surfaceEventType()) {
             case QPlatformSurfaceEvent::SurfaceCreated: {
+                // set colorscheme hint
+                if (qApp->property(s_schemePropertyName.constData()).isValid()) {
+                    installColorScheme(w);
+                }
+                // create deco
                 Surface *s = Surface::fromWindow(w);
                 if (!s) {
                     return false;
@@ -105,5 +113,20 @@
             }
         }
     }
+    if (event->type() == QEvent::ApplicationPaletteChange) {
+        const auto topLevelWindows = QGuiApplication::topLevelWindows();
+        for (QWindow *w : topLevelWindows) {
+            installColorScheme(w);
+        }
+    }
     return false;
 }
+
+void KWaylandIntegration::installColorScheme(QWindow *w)
+{
+    if (QPlatformNativeInterface *native = qApp->platformNativeInterface()) {
+        if (QPlatformWindow *pw = w->handle()) {
+            native->setWindowProperty(pw, QString::fromUtf8(s_schemePropertyName), qApp->property(s_schemePropertyName.constData()));
+        }
+    }
+}