Qt::AA_UseHighDpiPixmaps is enabled by default in qt6

app/main.cpp

@@ -42,8 +42,9 @@ int main(int argc, char *argv[])
     KWorkSpace::detectPlatform(argc, argv);
 
     QApplication application(argc, argv);
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
     application.setAttribute(Qt::AA_UseHighDpiPixmaps, true);
-
+#endif
     // The ki18n application domain must be set before we make any i18n() calls.
     KLocalizedString::setApplicationDomain(binaryName.toUtf8().constData());