Qt 6 works on Windows host

libs/widgets/colorbutton.cpp

@@ -41,7 +41,13 @@ void ColorButton::resizeEvent(QResizeEvent * ) {
 void ColorButton::mousePressEvent(QMouseEvent * e) {
 	pp = e->pos();
 	if (e->buttons().testFlag(Qt::RightButton)) {
-		menu.popup(e->globalPos());
+		menu.popup(
+#if QT_VERSION_MAJOR <= 5
+					((QMouseEvent*)e)->globalPos()
+#else
+					((QMouseEvent*)e)->globalPosition().toPoint()
+#endif
+						);
 		return;
 	}
 	QPushButton::mousePressEvent(e);