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++ // Copyright (C) 2020 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ //! [example]
++ import QtQuick
++ import Qt5Compat.GraphicalEffects
++
++ Item {
++ width: 300
++ height: 300
++
++ Image {
++ id: butterfly
++ source: "images/butterfly.png"
++ sourceSize: Qt.size(parent.width, parent.height)
++ smooth: true
++ visible: false
++ }
++
++ LevelAdjust {
++ anchors.fill: butterfly
++ source: butterfly
++ minimumOutput: "#00ffffff"
++ maximumOutput: "#ff000000"
++ }
++ }
++ //! [example]