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diff --git a/src/controls/Styles/Base/TreeViewStyle.qml b/src/controls/Styles/Base/TreeViewStyle.qml
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Controls module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.5
+import QtQuick.Controls 1.4
+import QtQuick.Controls.Private 1.0
+
+/*!
+    \qmltype TreeViewStyle
+    \inqmlmodule QtQuick.Controls.Styles
+    \since 5.5
+    \ingroup viewsstyling
+    \inherits TableViewStyle
+    \brief Provides custom styling for TreeView
+
+    \note This class derives from \l {QtQuick.Controls.Styles::}{TableViewStyle}
+    and supports all of the properties defined there.
+*/
+BasicTableViewStyle {
+    id: root
+
+    /*! The \l TreeView this style is attached to. */
+    readonly property TreeView control: __control
+
+    /*!
+        The amount each level is indented relatively to its parent level.
+    */
+    property int indentation: 12
+
+    // TODO - to update
+    /*! \qmlproperty Component TreeViewStyle::branchDelegate
+
+    This property defines a delegate to draw the branch indicator.
+
+    In the branch delegate you have access to the following special properties:
+    \list
+    \li  styleData.column - the index of the column
+    \li  styleData.selected - if the item is currently selected
+    \li  styleData.textColor - the default text color for an item
+    \li  styleData.isExpanded - true when the item is expanded
+    \li  styleData.hasChildren - true if the model index of the current item has children
+    \li  styleData.hasSibling - true if the model index of the current item has sibling
+    \endlist
+    */
+
+    property Component branchDelegate: Item {
+        width: 16
+        height: 16
+        Text {
+            visible: styleData.column === 0 && styleData.hasChildren
+            text: styleData.isExpanded ? "\u25bc" : "\u25b6"
+            color: !control.activeFocus || styleData.selected ? styleData.textColor : "#666"
+            font.pointSize: 10
+            renderType: Text.NativeRendering
+            anchors.centerIn: parent
+            anchors.verticalCenterOffset: styleData.isExpanded ? 2 : 0
+        }
+    }
+
+    __branchDelegate: branchDelegate
+    __indentation: indentation
+}