4 property variant test1: Qt.darker(Qt.rgba(1, 0.8, 0.3))
5 property variant test2: Qt.darker()
6 property variant test3: Qt.darker(Qt.rgba(1, 0.8, 0.3), 2.8)
7 property variant test4: Qt.darker("red");
8 property variant test5: Qt.darker("perfectred"); // Non-existent color
9 property variant test6: Qt.darker(10);
10 property variant test7: Qt.darker(Qt.rgba(1, 0.8, 0.3), 2.8, 10)