source directory updates

35 files changed, 3888 insertions, 0 deletions

diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp
new file mode 100644
index 00000000..4183dec1
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.cpp
@@ -0,0 +1,418 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QStyleFactory>
+#include <QMdiSubWindow>
+#include <QSettings>
+#include <QDir>
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QMenu>
+#include <QIcon>
+#include "qt5ct.h"
+#include "appearancepage.h"
+#include "paletteeditdialog.h"
+#include "ui_appearancepage.h"
+#include "ui_previewform.h"
+
+AppearancePage::AppearancePage(QWidget *parent) :
+    TabPage(parent),
+    m_ui(new Ui::AppearancePage)
+{
+    m_ui->setupUi(this);
+    QStringList keys = QStyleFactory::keys();
+    keys.removeAll("qt5ct-style"); //hide qt5ct proxy style
+    m_ui->styleComboBox->addItems(keys);
+
+    connect(m_ui->paletteComboBox, SIGNAL(activated(int)), SLOT(updatePalette()));
+    connect(m_ui->customPaletteButton, SIGNAL(clicked()), SLOT(updatePalette()));
+    connect(m_ui->defaultPaletteButton, SIGNAL(clicked()), SLOT(updatePalette()));
+
+    m_previewWidget = new QWidget(this);
+    m_previewUi = new Ui::PreviewForm();
+    m_previewUi->setupUi(m_previewWidget);
+    QMdiSubWindow *w = m_ui->mdiArea->addSubWindow(m_previewWidget, Qt::CustomizeWindowHint
+                                                   | Qt::WindowMinMaxButtonsHint
+                                                   | Qt::WindowTitleHint);
+    w->move(10, 10);
+
+    QMenu *menu = new QMenu(this);
+    menu->addAction(QIcon::fromTheme("list-add"), tr("Create"), this, SLOT(createColorScheme()));
+    m_changeColorSchemeAction = menu->addAction(tr("Edit"), this, SLOT(changeColorScheme()));
+    menu->addAction(tr("Create a Copy"), this, SLOT(copyColorScheme()));
+    m_renameColorSchemeAction = menu->addAction(tr("Rename"), this, SLOT(renameColorScheme()));
+    menu->addSeparator();
+    m_removeColorSchemeAction = menu->addAction(tr("Remove"), this, SLOT(removeColorScheme()));
+    m_ui->colorSchemeButton->setMenu(menu);
+
+    m_changeColorSchemeAction->setIcon(QIcon::fromTheme("accessories-text-editor"));
+    m_removeColorSchemeAction->setIcon(QIcon::fromTheme("list-remove"));
+    connect(menu, SIGNAL(aboutToShow()), SLOT(updateActions()));
+
+    readSettings();
+}
+
+AppearancePage::~AppearancePage()
+{
+    if(m_selectedStyle)
+        delete m_selectedStyle;
+    delete m_ui;
+    delete m_previewUi;
+}
+
+void AppearancePage::writeSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Appearance");
+    settings.setValue("style", m_ui->styleComboBox->currentText());
+    settings.setValue("custom_palette", m_ui->customPaletteButton->isChecked());
+    settings.setValue("color_scheme_path", m_ui->colorSchemeComboBox->currentData().toString());
+    settings.endGroup();
+}
+
+void AppearancePage::on_styleComboBox_activated(const QString &text)
+{
+    QStyle *style = QStyleFactory::create(text);
+    if(!style)
+        return;
+    setStyle(m_previewWidget, style);
+
+    if(m_selectedStyle)
+        delete m_selectedStyle;
+    m_selectedStyle = style;
+
+    updatePalette();
+}
+
+void AppearancePage::on_colorSchemeComboBox_activated(int)
+{
+    m_customPalette = loadColorScheme(m_ui->colorSchemeComboBox->currentData().toString());
+    updatePalette();
+}
+
+void AppearancePage::createColorScheme()
+{
+    QString name = QInputDialog::getText(this, tr("Enter Color Scheme Name"), tr("File name:"));
+    if(name.isEmpty())
+        return;
+
+    if(!name.endsWith(".conf", Qt::CaseInsensitive))
+        name.append(".conf");
+
+    if(m_ui->colorSchemeComboBox->findText(name.section('.',0,0)) != -1)
+    {
+        QMessageBox::warning(this, tr("Error"), tr("The color scheme \"%1\" already exists")
+                             .arg(name.section('.',0,0)));
+        return;
+    }
+
+    QString schemePath = Qt5CT::userColorSchemePath() + "/" + name;
+
+    createColorScheme(schemePath, palette());
+    m_ui->colorSchemeComboBox->addItem(name.section('.',0,0), schemePath);
+}
+
+void AppearancePage::changeColorScheme()
+{
+    if(m_ui->colorSchemeComboBox->currentIndex() < 0)
+        return;
+
+    if(!QFileInfo(m_ui->colorSchemeComboBox->currentData().toString()).isWritable())
+    {
+        QMessageBox::information(this, tr("Warning"), tr("The color scheme \"%1\" is read only")
+                                 .arg(m_ui->colorSchemeComboBox->currentText()));
+        return;
+    }
+
+    PaletteEditDialog d(m_customPalette, m_selectedStyle, this);
+    connect(&d, SIGNAL(paletteChanged(QPalette)), SLOT(setPreviewPalette(QPalette)));
+    if(d.exec() == QDialog::Accepted)
+    {
+        m_customPalette = d.selectedPalette();
+        createColorScheme(m_ui->colorSchemeComboBox->currentData().toString(), m_customPalette);
+    }
+    updatePalette();
+}
+
+void AppearancePage::removeColorScheme()
+{
+    int index = m_ui->colorSchemeComboBox->currentIndex();
+    if(index < 0 || m_ui->colorSchemeComboBox->count() <= 1)
+        return;
+
+    if(!QFileInfo(m_ui->colorSchemeComboBox->currentData().toString()).isWritable())
+    {
+        QMessageBox::information(this, tr("Warning"), tr("The color scheme \"%1\" is read only")
+                                 .arg(m_ui->colorSchemeComboBox->currentText()));
+        return;
+    }
+
+    int button = QMessageBox::question(this, tr("Confirm Remove"),
+                                       tr("Are you sure you want to remove color scheme \"%1\"?")
+                                       .arg(m_ui->colorSchemeComboBox->currentText()),
+                                       QMessageBox::Yes | QMessageBox::No);
+    if(button != QMessageBox::Yes)
+        return;
+
+    if(QFile::remove(m_ui->colorSchemeComboBox->currentData().toString()))
+    {
+        m_ui->colorSchemeComboBox->removeItem(index);
+        on_colorSchemeComboBox_activated(0);
+    }
+}
+
+void AppearancePage::copyColorScheme()
+{
+    if(m_ui->colorSchemeComboBox->currentIndex() < 0)
+        return;
+
+    QString name = QInputDialog::getText(this, tr("Enter Color Scheme Name"), tr("File name:"),
+                                         QLineEdit::Normal,
+                                         tr("%1 (copy)").arg(m_ui->colorSchemeComboBox->currentText()));
+    if(name.isEmpty() || name == m_ui->colorSchemeComboBox->currentText())
+        return;
+
+    if(!name.endsWith(".conf", Qt::CaseInsensitive))
+        name.append(".conf");
+
+    if(m_ui->colorSchemeComboBox->findText(name.section('.',0,0)) != -1)
+    {
+        QMessageBox::warning(this, tr("Error"), tr("The color scheme \"%1\" already exists")
+                             .arg(name.section('.',0,0)));
+        return;
+    }
+
+    QString newPath =  Qt5CT::userColorSchemePath() + "/" + name;
+    QFile::copy(m_ui->colorSchemeComboBox->currentData().toString(), newPath);
+    m_ui->colorSchemeComboBox->addItem(name.section('.',0,0), newPath);
+}
+
+void AppearancePage::renameColorScheme()
+{
+    int index = m_ui->colorSchemeComboBox->currentIndex();
+
+    if(index < 0)
+        return;
+
+    if(!QFileInfo(m_ui->colorSchemeComboBox->currentData().toString()).isWritable())
+    {
+        QMessageBox::information(this, tr("Warning"), tr("The color scheme \"%1\" is read only")
+                                 .arg(m_ui->colorSchemeComboBox->currentText()));
+        return;
+    }
+
+    QString name = QInputDialog::getText(this, tr("Enter Color Scheme Name"), tr("File name:"),
+                                         QLineEdit::Normal, m_ui->colorSchemeComboBox->currentText());
+    if(name.isEmpty() || name == m_ui->colorSchemeComboBox->currentText())
+        return;
+
+    if(!name.endsWith(".conf", Qt::CaseInsensitive))
+        name.append(".conf");
+
+    if(m_ui->colorSchemeComboBox->findText(name.section('.',0,0)) != -1)
+    {
+        QMessageBox::warning(this, tr("Error"), tr("The color scheme \"%1\" already exists")
+                             .arg(name.section('.',0,0)));
+        return;
+    }
+
+    QString newPath =  Qt5CT::userColorSchemePath() + "/" + name;
+    QFile::rename(m_ui->colorSchemeComboBox->currentData().toString(), newPath);
+    m_ui->colorSchemeComboBox->setItemText(index, name.section('.',0,0));
+    m_ui->colorSchemeComboBox->setItemData(index, newPath);
+}
+
+void AppearancePage::updatePalette()
+{
+    if(!m_selectedStyle)
+        return;
+
+    setPreviewPalette(m_ui->customPaletteButton->isChecked() ?
+                          m_customPalette : m_selectedStyle->standardPalette());
+}
+
+void AppearancePage::setPreviewPalette(const QPalette &p)
+{
+    QPalette previewPalette = palette();
+
+    QPalette::ColorGroup colorGroup = QPalette::Disabled;
+
+    if(m_ui->paletteComboBox->currentIndex() == 0)
+    {
+        colorGroup = QPalette::Active;
+    }
+    else if(m_ui->paletteComboBox->currentIndex() == 1)
+    {
+        colorGroup = QPalette::Inactive;
+    }
+
+    for (int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        QPalette::ColorRole role = QPalette::ColorRole(i);
+        previewPalette.setColor(QPalette::Active, role, p.color(colorGroup, role));
+        previewPalette.setColor(QPalette::Inactive, role, p.color(colorGroup, role));
+    }
+
+    setPalette(m_ui->mdiArea, previewPalette);
+}
+
+void AppearancePage::updateActions()
+{
+    if(m_ui->colorSchemeComboBox->count() == 0 ||
+            !QFileInfo(m_ui->colorSchemeComboBox->currentData().toString()).isWritable())
+    {
+        m_changeColorSchemeAction->setVisible(false);
+        m_renameColorSchemeAction->setVisible(false);
+        m_removeColorSchemeAction->setVisible(false);
+    }
+    else
+    {
+        m_changeColorSchemeAction->setVisible(true);
+        m_renameColorSchemeAction->setVisible(true);
+        m_removeColorSchemeAction->setVisible(m_ui->colorSchemeComboBox->count() > 1);
+    }
+}
+
+void AppearancePage::readSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Appearance");
+    QString style = settings.value("style", "Fusion").toString();
+    m_ui->styleComboBox->setCurrentText(style);
+
+    m_ui->customPaletteButton->setChecked(settings.value("custom_palette", false).toBool());
+    QString colorSchemePath = settings.value("color_scheme_path").toString();
+
+    QDir("/").mkpath(Qt5CT::userColorSchemePath());
+    findColorSchemes(Qt5CT::userColorSchemePath());
+    findColorSchemes(Qt5CT::sharedColorSchemePath());
+
+    if(m_ui->colorSchemeComboBox->count() == 0)
+    {
+        m_customPalette = palette(); //load fallback palette
+    }
+    else
+    {
+        int index = m_ui->colorSchemeComboBox->findData(colorSchemePath);
+        if(index >= 0)
+            m_ui->colorSchemeComboBox->setCurrentIndex(index);
+        m_customPalette = loadColorScheme(m_ui->colorSchemeComboBox->currentData().toString());
+    }
+
+    on_styleComboBox_activated(m_ui->styleComboBox->currentText());
+
+    settings.endGroup();
+}
+
+void AppearancePage::setStyle(QWidget *w, QStyle *s)
+{
+    foreach (QObject *o, w->children())
+    {
+        if(o->isWidgetType())
+        {
+            setStyle(qobject_cast<QWidget *>(o), s);
+        }
+    }
+    w->setStyle(s);
+}
+
+void AppearancePage::setPalette(QWidget *w, QPalette p)
+{
+    foreach (QObject *o, w->children())
+    {
+        if(o->isWidgetType())
+        {
+            setPalette(qobject_cast<QWidget *>(o), p);
+        }
+    }
+    w->setPalette(p);
+}
+
+void AppearancePage::findColorSchemes(const QString &path)
+{
+    QDir dir(path);
+    dir.setFilter(QDir::Files);
+    dir.setNameFilters(QStringList() << "*.conf");
+
+    foreach (QFileInfo info, dir.entryInfoList())
+    {
+        m_ui->colorSchemeComboBox->addItem(info.baseName(), info.filePath());
+    }
+}
+
+QPalette AppearancePage::loadColorScheme(const QString &filePath)
+{
+    QPalette customPalette;
+    QSettings settings(filePath, QSettings::IniFormat);
+    settings.beginGroup("ColorScheme");
+    QStringList activeColors = settings.value("active_colors").toStringList();
+    QStringList inactiveColors = settings.value("inactive_colors").toStringList();
+    QStringList disabledColors = settings.value("disabled_colors").toStringList();
+    settings.endGroup();
+
+    if(activeColors.count() == QPalette::NColorRoles &&
+            inactiveColors.count() == QPalette::NColorRoles &&
+            disabledColors.count() == QPalette::NColorRoles)
+    {
+        for (int i = 0; i < QPalette::NColorRoles; i++)
+        {
+            QPalette::ColorRole role = QPalette::ColorRole(i);
+            customPalette.setColor(QPalette::Active, role, QColor(activeColors.at(i)));
+            customPalette.setColor(QPalette::Inactive, role, QColor(inactiveColors.at(i)));
+            customPalette.setColor(QPalette::Disabled, role, QColor(disabledColors.at(i)));
+        }
+    }
+    else
+    {
+        customPalette = palette(); //load fallback palette
+    }
+
+    return customPalette;
+}
+
+void AppearancePage::createColorScheme(const QString &name, const QPalette &palette)
+{
+    QSettings settings(name, QSettings::IniFormat);
+    settings.beginGroup("ColorScheme");
+
+    QStringList activeColors, inactiveColors, disabledColors;
+    for (int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        QPalette::ColorRole role = QPalette::ColorRole(i);
+        activeColors << palette.color(QPalette::Active, role).name();
+        inactiveColors << palette.color(QPalette::Inactive, role).name();
+        disabledColors << palette.color(QPalette::Disabled, role).name();
+    }
+
+    settings.setValue("active_colors",activeColors);
+    settings.setValue("inactive_colors",inactiveColors);
+    settings.setValue("disabled_colors",disabledColors);
+
+    settings.endGroup();
+
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h
new file mode 100644
index 00000000..3a7752c7
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef APPEARANCEPAGE_H
+#define APPEARANCEPAGE_H
+
+#include "tabpage.h"
+
+namespace Ui {
+class AppearancePage;
+class PreviewForm;
+}
+
+class QStyle;
+class QAction;
+
+class AppearancePage : public TabPage
+{
+    Q_OBJECT
+
+public:
+    explicit AppearancePage(QWidget *parent = 0);
+    ~AppearancePage();
+
+    void writeSettings();
+
+private slots:
+    void on_styleComboBox_activated(const QString &text);
+    void on_colorSchemeComboBox_activated(int);
+    void createColorScheme();
+    void changeColorScheme();
+    void removeColorScheme();
+    void copyColorScheme();
+    void renameColorScheme();
+    void updatePalette();
+    void setPreviewPalette(const QPalette &p);
+    void updateActions();
+
+private:
+    void readSettings();
+    void setStyle(QWidget *w, QStyle *s);
+    void setPalette(QWidget *w, QPalette p);
+    void findColorSchemes(const QString &path);
+    QPalette loadColorScheme(const QString &filePath);
+    void createColorScheme(const QString &name, const QPalette &palette);
+    Ui::AppearancePage *m_ui;
+    QStyle *m_selectedStyle = nullptr;
+    QPalette m_customPalette;
+    QWidget *m_previewWidget;
+    QAction *m_changeColorSchemeAction, *m_renameColorSchemeAction, *m_removeColorSchemeAction;
+    Ui::PreviewForm *m_previewUi;
+};
+
+#endif // APPEARANCEPAGE_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.ui
new file mode 100644
index 00000000..cd442930
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/appearancepage.ui
@@ -0,0 +1,243 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>AppearancePage</class>
+ <widget class="QWidget" name="AppearancePage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>596</width>
+    <height>470</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_4">
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Style:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0" colspan="3">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Preview</string>
+     </property>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="0">
+       <widget class="QComboBox" name="paletteComboBox">
+        <item>
+         <property name="text">
+          <string>Active palette</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Inactive palette</string>
+         </property>
+        </item>
+        <item>
+         <property name="text">
+          <string>Disabled palette</string>
+         </property>
+        </item>
+       </widget>
+      </item>
+      <item row="0" column="1">
+       <spacer name="horizontalSpacer_2">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>82</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item row="1" column="0" colspan="2">
+       <widget class="QMdiArea" name="mdiArea">
+        <property name="tabsMovable">
+         <bool>false</bool>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QComboBox" name="styleComboBox"/>
+   </item>
+   <item row="0" column="2">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>40</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="2" column="0" colspan="3">
+    <widget class="QGroupBox" name="paletteGroupBox">
+     <property name="title">
+      <string>Palette</string>
+     </property>
+     <layout class="QVBoxLayout" name="_2">
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout">
+        <property name="spacing">
+         <number>6</number>
+        </property>
+        <item>
+         <widget class="QRadioButton" name="defaultPaletteButton">
+          <property name="text">
+           <string>Default</string>
+          </property>
+          <property name="checked">
+           <bool>true</bool>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QRadioButton" name="customPaletteButton">
+          <property name="text">
+           <string>Custom</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer_3">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>230</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_2">
+        <item>
+         <widget class="QLabel" name="colorScheeLabel">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <property name="text">
+           <string>Color scheme:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="colorSchemeComboBox">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <property name="minimumSize">
+           <size>
+            <width>150</width>
+            <height>0</height>
+           </size>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QToolButton" name="colorSchemeButton">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
+          <property name="text">
+           <string>...</string>
+          </property>
+          <property name="popupMode">
+           <enum>QToolButton::InstantPopup</enum>
+          </property>
+          <property name="arrowType">
+           <enum>Qt::NoArrow</enum>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <spacer name="horizontalSpacer_4">
+          <property name="orientation">
+           <enum>Qt::Horizontal</enum>
+          </property>
+          <property name="sizeHint" stdset="0">
+           <size>
+            <width>40</width>
+            <height>20</height>
+           </size>
+          </property>
+         </spacer>
+        </item>
+       </layout>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>customPaletteButton</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>colorScheeLabel</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>160</x>
+     <y>79</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>77</x>
+     <y>104</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>customPaletteButton</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>colorSchemeComboBox</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>144</x>
+     <y>75</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>146</x>
+     <y>100</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>customPaletteButton</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>colorSchemeButton</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>177</x>
+     <y>78</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>288</x>
+     <y>116</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.cpp
new file mode 100644
index 00000000..398a2436
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.cpp
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QXmlStreamWriter>
+#include <QFile>
+#include <QDir>
+#include <QMessageBox>
+#include "fontconfigdialog.h"
+#include "ui_fontconfigdialog.h"
+
+FontConfigDialog::FontConfigDialog(QWidget *parent) :
+    QDialog(parent),
+    m_ui(new Ui::FontConfigDialog)
+{
+    m_ui->setupUi(this);
+
+    m_ui->hintingStyleComboBox->addItem(tr("None"), "hintnone");
+    m_ui->hintingStyleComboBox->addItem(tr("Slight"), "hintslight");
+    m_ui->hintingStyleComboBox->addItem(tr("Medium"), "hintmedium");
+    m_ui->hintingStyleComboBox->addItem(tr("Full"), "hintfull");
+
+    m_ui->rgbaComboBox->addItem(tr("None"), "none");
+    m_ui->rgbaComboBox->addItem("rgb", "rgb");
+    m_ui->rgbaComboBox->addItem("bgr", "bgr");
+    m_ui->rgbaComboBox->addItem("vrgb", "vrgb");
+    m_ui->rgbaComboBox->addItem("vbgr", "vbgr");
+
+    m_ui->lcdFilterComboBox->addItem("lcdnone");
+    m_ui->lcdFilterComboBox->addItem("lcddefault");
+    m_ui->lcdFilterComboBox->addItem("lcdlight");
+    m_ui->lcdFilterComboBox->addItem("lcdlegacy");
+}
+
+FontConfigDialog::~FontConfigDialog()
+{
+    delete m_ui;
+}
+
+void FontConfigDialog::accept()
+{
+    QDir::home().mkpath(".config/fontconfig/");
+    QString path = QDir::homePath() + "/.config/fontconfig/fonts.conf";
+    qDebug("FontConfigDialog: fontconfig path: %s", qPrintable(path));
+
+
+    if(QFile::exists(path))
+    {
+        if(QMessageBox::question(this, tr("Font Configuration"),
+                                 tr("<i>%1</i> already exists. Do you want to replace it?").arg(path),
+                                 QMessageBox::Yes | QMessageBox::No) == QMessageBox::No)
+        {
+            QDialog::reject();
+            return;
+        }
+
+        QFile::remove(path + ".back");
+        QFile::copy(path, path + ".back");
+    }
+
+    QFile file(path);
+    if(!file.open(QIODevice::WriteOnly))
+    {
+        qWarning("FontConfigDialog: unable to open file: %s", qPrintable(file.errorString()));
+        return;
+    }
+
+    QXmlStreamWriter stream(&file);
+    stream.setAutoFormatting(true);
+
+    stream.writeStartDocument();
+    stream.writeDTD("<!DOCTYPE fontconfig SYSTEM \"fonts.dtd\">");
+    stream.writeStartElement("fontconfig");
+
+    stream.writeStartElement("match");
+    stream.writeAttribute("target", "font");
+    writeOption(&stream, "antialias", "bool", m_ui->antialisingCheckBox->isChecked() ? "true" : "false");
+    writeOption(&stream, "hinting", "bool", m_ui->hintingCheckBox->isChecked() ? "true" : "false");
+    writeOption(&stream, "hintstyle", "const", m_ui->hintingStyleComboBox->currentData().toString());
+    writeOption(&stream, "rgba", "const", m_ui->rgbaComboBox->currentData().toString());
+    writeOption(&stream, "autohint", "bool", m_ui->autohinterCheckBox->isChecked() ? "true" : "false");
+    writeOption(&stream, "lcdfilter", "const", m_ui->lcdFilterComboBox->currentText());
+    writeOption(&stream, "dpi", "double", QString::number(m_ui->dpiSpinBox->value()));
+    stream.writeEndElement();
+
+    if(m_ui->disableBoldAutohintCheckBox->isChecked())
+    {
+        stream.writeStartElement("match");
+        stream.writeAttribute("target", "font");
+
+        stream.writeStartElement("test");
+        stream.writeAttribute("name", "weight");
+        stream.writeAttribute("compare", "more");
+        stream.writeTextElement("const", "medium");
+        stream.writeEndElement();
+
+        writeOption(&stream, "autohint", "bool", m_ui->autohinterCheckBox->isChecked() ? "true" : "false");
+
+        stream.writeEndElement();
+    }
+    stream.writeEndElement();
+    stream.writeEndDocument();
+
+    QDialog::accept();
+}
+
+void FontConfigDialog::writeOption(QXmlStreamWriter *stream, const QString &name, const QString &type, const QString &value)
+{
+    stream->writeStartElement("edit");
+    stream->writeAttribute("name", name);
+    stream->writeAttribute("mode", "assign");
+    stream->writeTextElement(type, value);
+    stream->writeEndElement();
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.h
new file mode 100644
index 00000000..5b7e31a5
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FONTCONFIGDIALOG_H
+#define FONTCONFIGDIALOG_H
+
+#include <QDialog>
+
+namespace Ui {
+class FontConfigDialog;
+}
+
+class QXmlStreamWriter;
+
+class FontConfigDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit FontConfigDialog(QWidget *parent = 0);
+    ~FontConfigDialog();
+
+public slots:
+    void accept();
+    void writeOption(QXmlStreamWriter *stream, const QString &name, const QString &type, const QString &value);
+
+private:
+    Ui::FontConfigDialog *m_ui;
+};
+
+#endif // FONTCONFIGDIALOG_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.ui
new file mode 100644
index 00000000..a557695f
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontconfigdialog.ui
@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FontConfigDialog</class>
+ <widget class="QDialog" name="FontConfigDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>349</width>
+    <height>286</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Font Configuration</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>6</number>
+   </property>
+   <property name="rightMargin">
+    <number>6</number>
+   </property>
+   <property name="bottomMargin">
+    <number>6</number>
+   </property>
+   <item row="5" column="0" colspan="2">
+    <widget class="QCheckBox" name="disableBoldAutohintCheckBox">
+     <property name="text">
+      <string>Disable automatic hinting for bold fonts</string>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="0">
+    <widget class="QLabel" name="label_3">
+     <property name="text">
+      <string>LCD filter:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0" colspan="2">
+    <widget class="QCheckBox" name="autohinterCheckBox">
+     <property name="text">
+      <string>Automatic hinting</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0" colspan="2">
+    <widget class="QCheckBox" name="hintingCheckBox">
+     <property name="text">
+      <string>Hinting</string>
+     </property>
+    </widget>
+   </item>
+   <item row="8" column="0" colspan="2">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="7" column="0">
+    <widget class="QLabel" name="label_4">
+     <property name="text">
+      <string>Font resolution:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="1">
+    <widget class="QComboBox" name="lcdFilterComboBox"/>
+   </item>
+   <item row="3" column="1">
+    <widget class="QComboBox" name="rgbaComboBox"/>
+   </item>
+   <item row="2" column="1">
+    <widget class="QComboBox" name="hintingStyleComboBox"/>
+   </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="label_2">
+     <property name="text">
+      <string>Subpixel geometry:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="2">
+    <widget class="QCheckBox" name="antialisingCheckBox">
+     <property name="text">
+      <string>Antialiasing</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Hinting style:</string>
+     </property>
+    </widget>
+   </item>
+   <item row="7" column="1">
+    <widget class="QSpinBox" name="dpiSpinBox">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="suffix">
+      <string> dpi</string>
+     </property>
+     <property name="minimum">
+      <number>80</number>
+     </property>
+     <property name="maximum">
+      <number>180</number>
+     </property>
+     <property name="value">
+      <number>102</number>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>FontConfigDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>FontConfigDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.cpp
new file mode 100644
index 00000000..ac9fb164
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QSignalMapper>
+#include <QMessageBox>
+#include <QSettings>
+#include <QApplication>
+#include <QFontDialog>
+#include <QDir>
+#include <QFile>
+#include "qt5ct.h"
+#include "fontspage.h"
+#include "fontconfigdialog.h"
+#include "ui_fontspage.h"
+
+FontsPage::FontsPage(QWidget *parent) :
+    TabPage(parent),
+    m_ui(new Ui::FontsPage)
+{
+    m_ui->setupUi(this);
+
+    QSignalMapper *mapper = new QSignalMapper(this);
+    mapper->setMapping(m_ui->changeGeneralFontButton, m_ui->generalFontLabel);
+    mapper->setMapping(m_ui->changeFixedWidthFontButton, m_ui->fixedFontLabel);
+    connect(m_ui->changeGeneralFontButton, SIGNAL(clicked()), mapper, SLOT(map()));
+    connect(m_ui->changeFixedWidthFontButton, SIGNAL(clicked()), mapper, SLOT(map()));
+    connect(mapper, SIGNAL(mapped(QWidget*)), SLOT(onFontChangeRequested(QWidget*)));
+
+    readSettings();
+
+    //icons
+    m_ui->createFontsConfButton->setIcon(QIcon::fromTheme("document-new"));
+    m_ui->removeFontsConfButton->setIcon(QIcon::fromTheme("edit-delete"));
+}
+
+FontsPage::~FontsPage()
+{
+    delete m_ui;
+}
+
+void FontsPage::writeSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Fonts");
+    settings.setValue("general", m_ui->generalFontLabel->font());
+    settings.setValue("fixed", m_ui->fixedFontLabel->font());
+    settings.endGroup();
+}
+
+void FontsPage::onFontChangeRequested(QWidget *widget)
+{
+    bool ok = false;
+    QFont font = QFontDialog::getFont (&ok, widget->font(), this);
+    if(ok)
+    {
+        widget->setFont(font);
+        qobject_cast<QLabel*>(widget)->setText(font.family () + " " + QString::number(font.pointSize ()));
+    }
+}
+
+void FontsPage::readSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Fonts");
+    loadFont(&settings, m_ui->generalFontLabel, "general");
+    loadFont(&settings, m_ui->fixedFontLabel, "fixed");
+    settings.endGroup();
+}
+
+void FontsPage::loadFont(QSettings *settings, QLabel *label, const QString &key)
+{
+    QFont font = settings->value(key, QApplication::font()).value<QFont>();
+    label->setText(font.family () + " " + QString::number(font.pointSize ()));
+    label->setFont(font);
+}
+
+void FontsPage::on_createFontsConfButton_clicked()
+{
+    FontConfigDialog d(this);
+    d.exec();
+}
+
+void FontsPage::on_removeFontsConfButton_clicked()
+{
+    QString path = QDir::homePath() + "/.config/fontconfig/fonts.conf";
+
+
+    if(QFile::exists(path))
+    {
+        if(QMessageBox::question(this, tr("Remove Font Configuration"),
+                                 tr("Are you sure you want to delete <i>%1</i>?").arg(path),
+                                 QMessageBox::Yes | QMessageBox::No) == QMessageBox::No)
+        {
+            return;
+        }
+
+        QFile::remove(path + ".back");
+        QFile::copy(path, path + ".back");
+        QFile::remove(path);
+    }
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.h
new file mode 100644
index 00000000..a9c5f1f6
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FONTSPAGE_H
+#define FONTSPAGE_H
+
+#include "tabpage.h"
+
+namespace Ui {
+class FontsPage;
+}
+
+class QLabel;
+class QSettings;
+
+class FontsPage : public TabPage
+{
+    Q_OBJECT
+
+public:
+    explicit FontsPage(QWidget *parent = 0);
+    ~FontsPage();
+
+    void writeSettings();
+
+private slots:
+    void onFontChangeRequested(QWidget *widget);
+    void on_createFontsConfButton_clicked();
+    void on_removeFontsConfButton_clicked();
+
+private:
+    void readSettings();
+    void loadFont(QSettings *settings, QLabel *label, const QString &key);
+    Ui::FontsPage *m_ui;
+};
+
+#endif // FONTSPAGE_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.ui
new file mode 100644
index 00000000..b03b5fc0
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/fontspage.ui
@@ -0,0 +1,134 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>FontsPage</class>
+ <widget class="QWidget" name="FontsPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>517</width>
+    <height>320</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout_2">
+   <item row="1" column="2">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>342</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="0" colspan="3">
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="0" column="1">
+      <widget class="QLabel" name="generalFontLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="frameShape">
+        <enum>QFrame::StyledPanel</enum>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="text">
+        <string>General:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QToolButton" name="changeGeneralFontButton">
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="fixedFontLabel">
+       <property name="sizePolicy">
+        <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+         <horstretch>0</horstretch>
+         <verstretch>0</verstretch>
+        </sizepolicy>
+       </property>
+       <property name="frameShape">
+        <enum>QFrame::StyledPanel</enum>
+       </property>
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2">
+      <widget class="QToolButton" name="changeFixedWidthFontButton">
+       <property name="text">
+        <string>...</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>Fixed width:</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="2" column="0" colspan="3">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::Expanding</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>0</width>
+       <height>280</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="1" column="0">
+    <widget class="QPushButton" name="createFontsConfButton">
+     <property name="text">
+      <string>Create  fonts.conf</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="removeFontsConfButton">
+     <property name="text">
+      <string>Remove fonts.conf</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.cpp
new file mode 100644
index 00000000..ee4d638d
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.cpp
@@ -0,0 +1,214 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QSettings>
+#include <QFileInfo>
+#include <QFileInfoList>
+#include <QDir>
+#include <QTreeWidgetItem>
+#include <QImageReader>
+#include <QLocale>
+#include "qt5ct.h"
+#include "iconthemepage.h"
+#include "ui_iconthemepage.h"
+
+IconThemePage::IconThemePage(QWidget *parent) :
+    TabPage(parent),
+    m_ui(new Ui::IconThemePage)
+{
+    m_ui->setupUi(this);
+    loadThemes();
+    readSettings();
+}
+
+IconThemePage::~IconThemePage()
+{
+    delete m_ui;
+}
+
+void IconThemePage::writeSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    QTreeWidgetItem *item = m_ui->treeWidget->currentItem();
+    if(item)
+        settings.setValue("Appearance/icon_theme", item->data(3, Qt::UserRole));
+}
+
+void IconThemePage::readSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    QString name = settings.value("Appearance/icon_theme").toString();
+
+    if(name.isEmpty())
+        return;
+
+    for(int i = 0; i < m_ui->treeWidget->topLevelItemCount(); ++i)
+    {
+        QTreeWidgetItem *item = m_ui->treeWidget->topLevelItem(i);
+        if(item->data(3, Qt::UserRole).toString() == name)
+        {
+            m_ui->treeWidget->setCurrentItem(item);
+            break;
+        }
+    }
+}
+
+void IconThemePage::loadThemes()
+{
+    QFileInfoList themeFileList;
+    foreach(QString path, Qt5CT::iconPaths())
+    {
+        QDir dir(path);
+        dir.setFilter(QDir::Dirs | QDir::NoDotDot | QDir::NoDot);
+        foreach (QFileInfo info, dir.entryInfoList())
+        {
+            QDir themeDir(info.absoluteFilePath());
+            themeDir.setFilter(QDir::Files);
+            themeFileList << themeDir.entryInfoList(QStringList() << "index.theme");
+        }
+    }
+
+    foreach(QFileInfo info, themeFileList)
+    {
+        loadTheme(info.canonicalFilePath());
+    }
+}
+
+void IconThemePage::loadTheme(const QString &path)
+{
+    QSettings config(path, QSettings::IniFormat);
+    config.setIniCodec("UTF-8");
+
+    config.beginGroup("Icon Theme");
+    QStringList dirs = config.value("Directories").toStringList();
+    if(dirs.isEmpty() || config.value("Hidden", false).toBool())
+        return;
+
+    QString name, comment;
+    QString lang = QLocale::system().name();
+
+    name = config.value(QString("Name[%1]").arg(lang)).toString();
+    comment = config.value(QString("Comment[%1]").arg(lang)).toString();
+
+    if(lang.contains("_"))
+        lang = lang.split("_").first();
+
+    if(name.isEmpty())
+        name = config.value(QString("Name[%1]").arg(lang)).toString();
+
+    if(comment.isEmpty())
+        comment = config.value(QString("Comment[%1]").arg(lang)).toString();
+
+    if(name.isEmpty())
+        name = config.value("Name").toString();
+
+    if(comment.isEmpty())
+        comment = config.value("Comment").toString();
+
+    config.endGroup();
+
+    QIcon icon1 = findIcon(path, 24, "document-save");
+    QIcon icon2 = findIcon(path, 24, "document-print");
+    QIcon icon3 = findIcon(path, 24, "media-playback-stop");
+
+    QTreeWidgetItem *item = new QTreeWidgetItem();
+    item->setIcon(0, icon1);
+    item->setIcon(1, icon2);
+    item->setIcon(2, icon3);
+    item->setText(3, name);
+    item->setData(3, Qt::UserRole, QFileInfo(path).path().section("/", -1));
+    item->setToolTip(3, comment);
+    item->setSizeHint(0, QSize(24,24));
+    m_ui->treeWidget->addTopLevelItem(item);
+
+    m_ui->treeWidget->resizeColumnToContents(0);
+    m_ui->treeWidget->resizeColumnToContents(1);
+    m_ui->treeWidget->resizeColumnToContents(2);
+    m_ui->treeWidget->resizeColumnToContents(3);
+}
+
+QIcon IconThemePage::findIcon(const QString &themePath, int size, const QString &name)
+{
+    QSettings config(themePath, QSettings::IniFormat);
+    config.beginGroup("Icon Theme");
+    QStringList dirs = config.value("Directories").toStringList();
+    QStringList parents = config.value("Inherits").toStringList();
+    bool haveInherits = config.contains("Inherits");
+    config.endGroup();
+
+    foreach (QString dir, dirs)
+    {
+        config.beginGroup(dir);
+        if(config.value("Size").toInt() == size)
+        {
+            QDir iconDir = QFileInfo(themePath).path() + "/" + dir;
+            iconDir.setFilter(QDir::Files);
+            iconDir.setNameFilters(QStringList () << name + ".*");
+            if(iconDir.entryInfoList().isEmpty())
+                continue;
+            return QIcon(iconDir.entryInfoList().first().absoluteFilePath());
+        }
+        config.endGroup();
+    }
+
+    foreach (QString dir, dirs)
+    {
+        config.beginGroup(dir);
+        if(abs(config.value("Size").toInt() - size) < 4)
+        {
+            QDir iconDir = QFileInfo(themePath).path() + "/" + dir;
+            iconDir.setFilter(QDir::Files);
+            iconDir.setNameFilters(QStringList () << name + ".*");
+            if(iconDir.entryInfoList().isEmpty())
+                continue;
+            return QIcon(iconDir.entryInfoList().first().absoluteFilePath());
+        }
+        config.endGroup();
+    }
+
+    if (!haveInherits)
+        return QIcon();
+
+    parents.append("hicolor"); //add fallback themes
+    parents.append("gnome");
+    parents.removeDuplicates();
+
+    foreach (QString parent, parents)
+    {
+        QString parentThemePath = QDir(QFileInfo(themePath).path() + "/../" + parent).canonicalPath() + "/index.theme";
+
+        if(!QFile::exists(parentThemePath) || parentThemePath == themePath)
+            continue;
+
+        QIcon icon = findIcon(parentThemePath, size, name);
+        if(!icon.isNull())
+            return icon;
+    }
+
+    return QIcon();
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.h
new file mode 100644
index 00000000..0ccd64e0
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef ICONTHEMEPAGE_H
+#define ICONTHEMEPAGE_H
+
+#include <QIcon>
+#include "tabpage.h"
+
+namespace Ui {
+class IconThemePage;
+}
+
+class IconThemePage : public TabPage
+{
+    Q_OBJECT
+
+public:
+    explicit IconThemePage(QWidget *parent = 0);
+    ~IconThemePage();
+
+    void writeSettings();
+
+private:
+    void readSettings();
+    void loadThemes();
+    void loadTheme(const QString &path);
+    QIcon findIcon(const QString &themePath, int size, const QString &name);
+    Ui::IconThemePage *m_ui;
+};
+
+#endif // ICONTHEMEPAGE_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.ui
new file mode 100644
index 00000000..a6385041
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/iconthemepage.ui
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>IconThemePage</class>
+ <widget class="QWidget" name="IconThemePage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Form</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QTreeWidget" name="treeWidget">
+     <property name="columnCount">
+      <number>4</number>
+     </property>
+     <attribute name="headerVisible">
+      <bool>false</bool>
+     </attribute>
+     <column>
+      <property name="text">
+       <string notr="true">1</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">2</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">3</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string notr="true">4</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.cpp
new file mode 100644
index 00000000..fc5c0662
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QSettings>
+#include <QApplication>
+#include <QDialogButtonBox>
+#include "qt5ct.h"
+#include "interfacepage.h"
+#include "ui_interfacepage.h"
+
+InterfacePage::InterfacePage(QWidget *parent) :
+    TabPage(parent),
+    m_ui(new Ui::InterfacePage)
+{
+    m_ui->setupUi(this);
+
+    m_ui->buttonLayoutComboBox->addItem("Windows", QDialogButtonBox::WinLayout);
+    m_ui->buttonLayoutComboBox->addItem("Mac OS X", QDialogButtonBox::MacLayout);
+    m_ui->buttonLayoutComboBox->addItem("KDE", QDialogButtonBox::KdeLayout);
+    m_ui->buttonLayoutComboBox->addItem("GNOME", QDialogButtonBox::GnomeLayout);
+
+    m_ui->toolButtonStyleComboBox->addItem(tr("Only display the icon"), Qt::ToolButtonIconOnly);
+    m_ui->toolButtonStyleComboBox->addItem(tr("Only display the text"), Qt::ToolButtonTextOnly);
+    m_ui->toolButtonStyleComboBox->addItem(tr("The text appears beside the icon"), Qt::ToolButtonTextBesideIcon);
+    m_ui->toolButtonStyleComboBox->addItem(tr("The text appears under the icon"), Qt::ToolButtonTextUnderIcon);
+    m_ui->toolButtonStyleComboBox->addItem(tr("Follow the application style"), Qt::ToolButtonFollowStyle);
+
+    readSettings();
+}
+
+InterfacePage::~InterfacePage()
+{
+    delete m_ui;
+}
+
+void InterfacePage::writeSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Interface");
+    settings.setValue("double_click_interval", m_ui->doubleClickIntervalSpinBox->value());
+    settings.setValue("cursor_flash_time", m_ui->cursorFlashTimeSpinBox->value());
+    settings.setValue("buttonbox_layout", m_ui->buttonLayoutComboBox->currentData());
+    settings.setValue("menus_have_icons", m_ui->menuIconsCheckBox->isChecked());
+    settings.setValue("activate_item_on_single_click", m_ui->singleClickCheckBox->checkState());
+    settings.setValue("dialog_buttons_have_icons", m_ui->dialogIconsCheckBox->checkState());
+    settings.setValue("toolbutton_style", m_ui->toolButtonStyleComboBox->currentData());
+    settings.setValue("wheel_scroll_lines", m_ui->wheelScrollLinesSpinBox->value());
+
+    QStringList effects;
+    if(m_ui->guiEffectsCheckBox->isChecked())
+        effects << "General";
+
+    if(m_ui->menuEffectComboBox->currentIndex() == 1)
+        effects << "AnimateMenu";
+    else if(m_ui->menuEffectComboBox->currentIndex() == 2)
+        effects << "FadeMenu";
+
+    if(m_ui->comboBoxEffectComboBox->currentIndex() == 1)
+        effects << "AnimateCombo";
+
+    if(m_ui->toolTipEffectComboBox->currentIndex() == 1)
+        effects << "AnimateTooltip";
+    else if(m_ui->toolTipEffectComboBox->currentIndex() == 2)
+        effects << "FadeTooltip";
+
+    if(m_ui->toolBoxEffectComboBox->currentIndex() == 1)
+        effects << "AnimateToolBox";
+
+    settings.setValue("gui_effects", effects);
+    settings.endGroup();
+}
+
+void InterfacePage::readSettings()
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.beginGroup("Interface");
+    m_ui->doubleClickIntervalSpinBox->setValue(qApp->doubleClickInterval());
+    m_ui->cursorFlashTimeSpinBox->setValue(qApp->cursorFlashTime());
+
+    m_ui->guiEffectsCheckBox->setChecked(qApp->isEffectEnabled(Qt::UI_General));
+
+    int layout = settings.value("buttonbox_layout", style()->styleHint(QStyle::SH_DialogButtonLayout)).toInt();
+    int index = m_ui->buttonLayoutComboBox->findData(layout);
+    if(index >= 0)
+        m_ui->buttonLayoutComboBox->setCurrentIndex(index);
+
+    if(qApp->isEffectEnabled(Qt::UI_AnimateMenu))
+        m_ui->menuEffectComboBox->setCurrentIndex(1);
+    else if(qApp->isEffectEnabled(Qt::UI_FadeMenu))
+        m_ui->menuEffectComboBox->setCurrentIndex(2);
+
+    if(qApp->isEffectEnabled(Qt::UI_AnimateCombo))
+        m_ui->comboBoxEffectComboBox->setCurrentIndex(1);
+
+    if(qApp->isEffectEnabled(Qt::UI_AnimateTooltip))
+        m_ui->toolTipEffectComboBox->setCurrentIndex(1);
+    else  if(qApp->isEffectEnabled(Qt::UI_FadeTooltip))
+        m_ui->toolTipEffectComboBox->setCurrentIndex(2);
+
+    if(qApp->isEffectEnabled(Qt::UI_AnimateToolBox))
+        m_ui->toolBoxEffectComboBox->setCurrentIndex(1);
+
+    m_ui->singleClickCheckBox->setCheckState((Qt::CheckState)settings.value("activate_item_on_single_click", Qt::PartiallyChecked).toInt());
+    m_ui->dialogIconsCheckBox->setCheckState((Qt::CheckState)settings.value("dialog_buttons_have_icons", Qt::PartiallyChecked).toInt());
+    m_ui->menuIconsCheckBox->setChecked(!qApp->testAttribute(Qt::AA_DontShowIconsInMenus));
+
+    int toolbarStyle = settings.value("toolbutton_style", Qt::ToolButtonFollowStyle).toInt();
+    index = m_ui->toolButtonStyleComboBox->findData(toolbarStyle);
+    if(index >= 0)
+        m_ui->toolButtonStyleComboBox->setCurrentIndex(index);
+
+    m_ui->wheelScrollLinesSpinBox->setValue(settings.value("wheel_scroll_lines", 3).toInt());
+
+    settings.endGroup();
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.h
new file mode 100644
index 00000000..637b6bf1
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef INTERFACEPAGE_H
+#define INTERFACEPAGE_H
+
+#include "tabpage.h"
+
+namespace Ui {
+class InterfacePage;
+}
+
+class InterfacePage : public TabPage
+{
+    Q_OBJECT
+
+public:
+    explicit InterfacePage(QWidget *parent = 0);
+    ~InterfacePage();
+
+    void writeSettings();
+
+private:
+    void readSettings();
+
+    Ui::InterfacePage *m_ui;
+};
+
+#endif // INTERFACEPAGE_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.ui
new file mode 100644
index 00000000..ca9d0291
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/interfacepage.ui
@@ -0,0 +1,327 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>InterfacePage</class>
+ <widget class="QWidget" name="InterfacePage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>498</width>
+    <height>449</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="2" column="0">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>259</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="0">
+    <layout class="QFormLayout" name="formLayout">
+     <item row="0" column="0">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Double click interval:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Cursor flash time:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="0">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>ComboBox effect:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="6" column="0">
+      <widget class="QLabel" name="label_4">
+       <property name="text">
+        <string>ToolTip effect:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="7" column="0">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>ToolBox effect:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QSpinBox" name="doubleClickIntervalSpinBox">
+       <property name="suffix">
+        <string> ms</string>
+       </property>
+       <property name="maximum">
+        <number>2000</number>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QSpinBox" name="cursorFlashTimeSpinBox">
+       <property name="suffix">
+        <string> ms</string>
+       </property>
+       <property name="maximum">
+        <number>4000</number>
+       </property>
+      </widget>
+     </item>
+     <item row="5" column="1">
+      <widget class="QComboBox" name="comboBoxEffectComboBox">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <item>
+        <property name="text">
+         <string>Disable</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Animate</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+     <item row="6" column="1">
+      <widget class="QComboBox" name="toolTipEffectComboBox">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <item>
+        <property name="text">
+         <string>Disable</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Animate</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Fade</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+     <item row="7" column="1">
+      <widget class="QComboBox" name="toolBoxEffectComboBox">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <item>
+        <property name="text">
+         <string>Disable</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Animate</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+     <item row="4" column="0">
+      <widget class="QLabel" name="label_6">
+       <property name="text">
+        <string>Menu effect:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="1">
+      <widget class="QComboBox" name="menuEffectComboBox">
+       <property name="enabled">
+        <bool>false</bool>
+       </property>
+       <item>
+        <property name="text">
+         <string>Disable</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Animate</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>Fade</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+     <item row="3" column="0" colspan="2">
+      <widget class="QCheckBox" name="guiEffectsCheckBox">
+       <property name="text">
+        <string>Enable gui effects</string>
+       </property>
+      </widget>
+     </item>
+     <item row="8" column="0">
+      <widget class="QLabel" name="label_7">
+       <property name="text">
+        <string>Dialog buttons layout:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="8" column="1">
+      <widget class="QComboBox" name="buttonLayoutComboBox"/>
+     </item>
+     <item row="10" column="0" colspan="2">
+      <widget class="QCheckBox" name="menuIconsCheckBox">
+       <property name="text">
+        <string>Menus have icons</string>
+       </property>
+      </widget>
+     </item>
+     <item row="9" column="0" colspan="2">
+      <widget class="QCheckBox" name="dialogIconsCheckBox">
+       <property name="text">
+        <string>Dialog buttons have icons</string>
+       </property>
+       <property name="tristate">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0" colspan="2">
+      <widget class="QCheckBox" name="singleClickCheckBox">
+       <property name="text">
+        <string>Activate item on single-click</string>
+       </property>
+       <property name="tristate">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+     <item row="11" column="0">
+      <widget class="QLabel" name="label_8">
+       <property name="text">
+        <string>Toolbar button style:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="11" column="1">
+      <widget class="QComboBox" name="toolButtonStyleComboBox"/>
+     </item>
+     <item row="12" column="0">
+      <widget class="QLabel" name="label_9">
+       <property name="text">
+        <string>Mouse wheel scroll lines:</string>
+       </property>
+      </widget>
+     </item>
+     <item row="12" column="1">
+      <widget class="QSpinBox" name="wheelScrollLinesSpinBox">
+       <property name="minimum">
+        <number>1</number>
+       </property>
+       <property name="maximum">
+        <number>20</number>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item row="0" column="1">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>238</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>guiEffectsCheckBox</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>menuEffectComboBox</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>126</x>
+     <y>86</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>201</x>
+     <y>114</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>guiEffectsCheckBox</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>comboBoxEffectComboBox</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>75</x>
+     <y>84</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>160</x>
+     <y>153</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>guiEffectsCheckBox</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>toolTipEffectComboBox</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>54</x>
+     <y>84</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>155</x>
+     <y>184</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>guiEffectsCheckBox</sender>
+   <signal>toggled(bool)</signal>
+   <receiver>toolBoxEffectComboBox</receiver>
+   <slot>setEnabled(bool)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>36</x>
+     <y>91</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>156</x>
+     <y>216</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp
new file mode 100644
index 00000000..d15c9c01
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/main.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QApplication>
+#include <QLibraryInfo>
+#include <QLocale>
+#include "qt5ct.h"
+#include <QTranslator>
+#include <QMessageBox>
+#include <QProcessEnvironment>
+#include <QStyleFactory>
+#include "mainwindow.h"
+
+int main(int argc, char **argv)
+{
+    QApplication app(argc, argv);
+    QTranslator translator;
+    QString locale = Qt5CT::systemLanguageID();
+    translator.load(QString(":/qt5ct_") + locale);
+    app.installTranslator(&translator);
+
+    QTranslator qt_translator;
+    qt_translator.load(QLibraryInfo::location (QLibraryInfo::TranslationsPath) + "/qtbase_" + locale);
+    app.installTranslator(&qt_translator);
+
+    qDebug("Configuration path: %s", qPrintable(Qt5CT::configPath()));
+    qDebug("Shared QSS path: %s", qPrintable(Qt5CT::sharedStyleSheetPath()));
+
+    //checking environment
+    QStringList errorMessages;
+    QProcessEnvironment env = QProcessEnvironment::systemEnvironment();
+
+    if(env.contains("QT_STYLE_OVERRIDE"))
+    {
+        errorMessages << app.translate("main", "Please remove the <b>QT_STYLE_OVERRIDE</b> environment variable");
+    }
+
+    if(env.value("QT_QPA_PLATFORMTHEME") != "qt5ct")
+    {
+        errorMessages << app.translate("main", "The <b>QT_QPA_PLATFORMTHEME</b> environment "
+                                               "variable is not set correctly");
+    }
+
+    if(!QStyleFactory::keys().contains("qt5ct-style"))
+    {
+        errorMessages << app.translate("main", "Unable to find <b>libqt5ct-style.so</b>");
+    }
+
+    if(!errorMessages.isEmpty())
+    {
+        QMessageBox::critical(0, app.translate("main", "Error"), errorMessages.join("<br><br>"));
+        return 0;
+    }
+
+    MainWindow w;
+    w.show();
+
+    return app.exec();
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.cpp
new file mode 100644
index 00000000..b120436f
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QApplication>
+#include <QSettings>
+#include "qt5ct.h"
+#include "mainwindow.h"
+#include "appearancepage.h"
+#include "fontspage.h"
+#include "iconthemepage.h"
+#include "interfacepage.h"
+#include "qsspage.h"
+#include "ui_mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent) :
+    QWidget(parent),
+    m_ui(new Ui::MainWindow)
+{
+    m_ui->setupUi(this);
+    m_ui->tabWidget->addTab(new AppearancePage(this), tr("Appearance"));
+    m_ui->tabWidget->addTab(new FontsPage(this), tr("Fonts"));
+    m_ui->tabWidget->addTab(new IconThemePage(this), tr("Icon Theme"));
+    m_ui->tabWidget->addTab(new InterfacePage(this), tr("Interface"));
+#ifdef USE_WIDGETS
+    m_ui->tabWidget->addTab(new QSSPage(this), tr("Style Sheets"));
+#endif
+
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    restoreGeometry(settings.value("SettingsWindow/geometry").toByteArray());
+
+    setWindowIcon(QIcon::fromTheme("preferences-desktop-theme"));
+
+    m_ui->versionLabel->setText(tr("Version: %1").arg(QT5CT_VERSION_STR));
+}
+
+MainWindow::~MainWindow()
+{
+    delete m_ui;
+}
+
+void MainWindow::closeEvent(QCloseEvent *)
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.setValue("SettingsWindow/geometry", saveGeometry());
+}
+
+void MainWindow::on_buttonBox_clicked(QAbstractButton *button)
+{
+    int id = m_ui->buttonBox->standardButton(button);
+    if(id == QDialogButtonBox::Ok || id == QDialogButtonBox::Apply)
+    {
+        for(int i = 0; i < m_ui->tabWidget->count(); ++i)
+        {
+            TabPage *p = qobject_cast<TabPage*>(m_ui->tabWidget->widget(i));
+            if(p)
+                p->writeSettings();
+        }
+    }
+
+    if(id == QDialogButtonBox::Ok || id == QDialogButtonBox::Cancel)
+    {
+        close();
+        qApp->quit();
+    }
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.h
new file mode 100644
index 00000000..f532141c
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QWidget>
+
+class QAbstractButton;
+
+namespace Ui {
+class MainWindow;
+}
+
+class MainWindow : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = 0);
+    ~MainWindow();
+
+private slots:
+    void on_buttonBox_clicked(QAbstractButton *button);
+
+private:
+    void closeEvent(QCloseEvent *);
+
+    Ui::MainWindow *m_ui;
+};
+
+#endif // MAINWINDOW_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.ui
new file mode 100644
index 00000000..5bdab6d7
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/mainwindow.ui
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QWidget" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>438</width>
+    <height>374</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Qt5 Configuration Tool</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>6</number>
+   </property>
+   <property name="rightMargin">
+    <number>6</number>
+   </property>
+   <property name="bottomMargin">
+    <number>6</number>
+   </property>
+   <item row="0" column="0" colspan="2">
+    <widget class="QTabWidget" name="tabWidget"/>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="versionLabel">
+     <property name="text">
+      <string notr="true">...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Apply|QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.cpp
new file mode 100644
index 00000000..31a3a2a9
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.cpp
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QPalette>
+#include <QColorDialog>
+#include <QSettings>
+#include "qt5ct.h"
+#include "paletteeditdialog.h"
+#include "ui_paletteeditdialog.h"
+
+PaletteEditDialog::PaletteEditDialog(const QPalette &palette, QStyle *currentStyle, QWidget *parent) :
+    QDialog(parent),
+    m_ui(new Ui::PaletteEditDialog)
+{
+    m_currentStyle = currentStyle;
+    m_ui->setupUi(this);
+    m_ui->tableWidget->setColumnCount(3);
+    m_ui->tableWidget->setRowCount(QPalette::NColorRoles);
+    m_ui->tableWidget->verticalHeader()->setDefaultSectionSize(fontMetrics().lineSpacing() + 10);
+    m_ui->tableWidget->verticalHeader()->setSectionResizeMode(QHeaderView::Fixed);
+    m_ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
+
+    QStringList labels;
+    labels << tr("Active") << tr("Inactive") << tr("Disabled");
+    m_ui->tableWidget->setHorizontalHeaderLabels(labels);
+    setPalette(palette);
+
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    restoreGeometry(settings.value("PaletteEditor/geometry").toByteArray());
+}
+
+PaletteEditDialog::~PaletteEditDialog()
+{
+    delete m_ui;
+}
+
+QPalette PaletteEditDialog::selectedPalette() const
+{
+    QPalette palette;
+    for(int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        palette.setBrush(QPalette::Active, QPalette::ColorRole(i), m_ui->tableWidget->item(i,0)->backgroundColor());
+        palette.setBrush(QPalette::Inactive, QPalette::ColorRole(i), m_ui->tableWidget->item(i,1)->backgroundColor());
+        palette.setBrush(QPalette::Disabled, QPalette::ColorRole(i), m_ui->tableWidget->item(i,2)->backgroundColor());
+    }
+    return palette;
+}
+
+void PaletteEditDialog::setPalette(const QPalette &palette)
+{
+    for(int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        if(!m_ui->tableWidget->item(i,0))
+            m_ui->tableWidget->setItem(i, 0, new QTableWidgetItem());
+        if(!m_ui->tableWidget->item(i,1))
+            m_ui->tableWidget->setItem(i, 1, new QTableWidgetItem());
+        if(!m_ui->tableWidget->item(i,2))
+            m_ui->tableWidget->setItem(i, 2, new QTableWidgetItem());
+
+        m_ui->tableWidget->item(i,0)->setBackgroundColor(palette.color(QPalette::Active, QPalette::ColorRole(i)));
+        m_ui->tableWidget->item(i,1)->setBackgroundColor(palette.color(QPalette::Inactive, QPalette::ColorRole(i)));
+        m_ui->tableWidget->item(i,2)->setBackgroundColor(palette.color(QPalette::Disabled, QPalette::ColorRole(i)));
+    }
+
+    QStringList labels;
+    labels << tr("Window text") << tr("Button background") << tr("Bright") << tr("Less bright") << tr("Dark") << tr("Less dark")
+           << tr("Normal text") << tr("Bright text") << tr("Button text") << tr("Normal background") << tr("Window") << tr("Shadow")
+           << tr("Highlight") << tr("Highlighted text")  << tr("Link")  << tr("Visited link")
+           << tr("Alternate background") << tr("Default") << tr("Tooltip background")  << tr("Tooltip text");
+    m_ui->tableWidget->setVerticalHeaderLabels(labels);
+}
+
+void PaletteEditDialog::hideEvent(QHideEvent *)
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.setValue("PaletteEditor/geometry", saveGeometry());
+}
+
+void PaletteEditDialog::on_tableWidget_itemClicked(QTableWidgetItem *item)
+{
+    QColor color = QColorDialog::getColor(item->backgroundColor(), this, tr("Select Color"));
+    if(color.isValid())
+    {
+        item->setBackgroundColor(color);
+        emit paletteChanged(selectedPalette());
+    }
+}
+
+void PaletteEditDialog::on_resetPaletteButton_clicked()
+{
+    setPalette(m_currentStyle->standardPalette());
+    emit paletteChanged(selectedPalette());
+}
+
+void PaletteEditDialog::on_buildInactiveButton_clicked()
+{
+    QPalette palette = selectedPalette();
+    for(int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        palette.setColor(QPalette::Inactive, QPalette::ColorRole(i),
+                         palette.color(QPalette::Active, QPalette::ColorRole(i)));
+    }
+    setPalette(palette);
+    emit paletteChanged(selectedPalette());
+}
+
+void PaletteEditDialog::on_buildDisabledButton_clicked()
+{
+    QPalette palette = selectedPalette();
+    for(int i = 0; i < QPalette::NColorRoles; i++)
+    {
+        palette.setColor(QPalette::Disabled, QPalette::ColorRole(i),
+                         palette.color(QPalette::Active, QPalette::ColorRole(i)));
+    }
+    palette.setColor(QPalette::Disabled, QPalette::ButtonText, Qt::darkGray);
+    palette.setColor(QPalette::Disabled, QPalette::WindowText, Qt::darkGray);
+    palette.setColor(QPalette::Disabled, QPalette::Text, Qt::darkGray);
+    palette.setColor(QPalette::Disabled, QPalette::HighlightedText, Qt::darkGray);
+    setPalette(palette);
+    emit paletteChanged(selectedPalette());
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.h
new file mode 100644
index 00000000..c8691a3c
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PALETTEEDITDIALOG_H
+#define PALETTEEDITDIALOG_H
+
+#include <QDialog>
+#include <QPalette>
+
+class QTableWidgetItem;
+class QStyle;
+
+namespace Ui {
+class PaletteEditDialog;
+}
+
+class PaletteEditDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit PaletteEditDialog(const QPalette &palette, QStyle *currentStyle, QWidget *parent = 0);
+    ~PaletteEditDialog();
+
+    QPalette selectedPalette() const;
+
+signals:
+    void paletteChanged(const QPalette &p);
+
+private slots:
+    void on_tableWidget_itemClicked(QTableWidgetItem *item);
+    void on_resetPaletteButton_clicked();
+    void on_buildInactiveButton_clicked();
+    void on_buildDisabledButton_clicked();
+
+private:
+    void setPalette(const QPalette &palette);
+    void hideEvent(QHideEvent *);
+    Ui::PaletteEditDialog *m_ui;
+    QStyle *m_currentStyle;
+};
+
+#endif // PALETTEEDITDIALOG_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.ui
new file mode 100644
index 00000000..6ca6350f
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/paletteeditdialog.ui
@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PaletteEditDialog</class>
+ <widget class="QDialog" name="PaletteEditDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>631</width>
+    <height>529</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Palette Editor</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <property name="leftMargin">
+    <number>6</number>
+   </property>
+   <property name="rightMargin">
+    <number>6</number>
+   </property>
+   <property name="bottomMargin">
+    <number>6</number>
+   </property>
+   <item row="3" column="0">
+    <widget class="QPushButton" name="buildInactiveButton">
+     <property name="text">
+      <string>Build inactive palette</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="QPushButton" name="buildDisabledButton">
+     <property name="text">
+      <string>Build disabled palette</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="3">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>117</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="9" column="0" colspan="5">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0" colspan="5">
+    <widget class="QTableWidget" name="tableWidget">
+     <property name="editTriggers">
+      <set>QAbstractItemView::NoEditTriggers</set>
+     </property>
+     <property name="selectionMode">
+      <enum>QAbstractItemView::NoSelection</enum>
+     </property>
+     <property name="columnCount">
+      <number>0</number>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="2">
+    <widget class="QPushButton" name="resetPaletteButton">
+     <property name="text">
+      <string>Reset palette</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>PaletteEditDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>PaletteEditDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/previewform.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/previewform.ui
new file mode 100644
index 00000000..508201db
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/previewform.ui
@@ -0,0 +1,76 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PreviewForm</class>
+ <widget class="QWidget" name="PreviewForm">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>281</width>
+    <height>130</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Preview Window</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <item>
+    <widget class="QTabWidget" name="tabWidget">
+     <property name="currentIndex">
+      <number>0</number>
+     </property>
+     <widget class="QWidget" name="tab_3">
+      <attribute name="title">
+       <string>Tab 1</string>
+      </attribute>
+      <layout class="QGridLayout" name="gridLayout_4">
+       <item row="1" column="0">
+        <widget class="QPushButton" name="pushButton_3">
+         <property name="text">
+          <string>PushButton</string>
+         </property>
+        </widget>
+       </item>
+       <item row="1" column="1" colspan="2">
+        <widget class="QProgressBar" name="progressBar_2">
+         <property name="value">
+          <number>24</number>
+         </property>
+        </widget>
+       </item>
+       <item row="0" column="0">
+        <widget class="QLineEdit" name="lineEdit_2"/>
+       </item>
+       <item row="0" column="1" colspan="2">
+        <widget class="QSpinBox" name="spinBox_2"/>
+       </item>
+      </layout>
+     </widget>
+     <widget class="QWidget" name="tab_4">
+      <attribute name="title">
+       <string>Tab 2</string>
+      </attribute>
+      <layout class="QVBoxLayout" name="verticalLayout_3">
+       <item>
+        <widget class="QRadioButton" name="radioButton_7">
+         <property name="text">
+          <string>RadioButton</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QCheckBox" name="checkBox_2">
+         <property name="text">
+          <string>CheckBox</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </widget>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp
new file mode 100644
index 00000000..7c6292ac
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.cpp
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QFile>
+#include <QSettings>
+#include "qt5ct.h"
+#include "qsseditordialog.h"
+#include "ui_qsseditordialog.h"
+
+QSSEditorDialog::QSSEditorDialog(const QString &filePath, QWidget *parent) :
+    QDialog(parent),
+    m_ui(new Ui::QSSEditorDialog)
+{
+    m_ui->setupUi(this);
+    m_filePath = filePath;
+
+    QFile file(filePath);
+    file.open(QIODevice::ReadOnly);
+    m_ui->textEdit->setPlainText(QString::fromUtf8(file.readAll()));
+    setWindowTitle(tr("%1 - Style Sheet Editor").arg(file.fileName()));
+
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    restoreGeometry(settings.value("QSSEditor/geometry").toByteArray());
+}
+
+QSSEditorDialog::~QSSEditorDialog()
+{
+    delete m_ui;
+}
+
+void QSSEditorDialog::save()
+{
+    QFile file(m_filePath);
+    file.open(QIODevice::WriteOnly);
+    file.write(m_ui->textEdit->toPlainText().toUtf8());
+}
+
+void QSSEditorDialog::hideEvent(QHideEvent *)
+{
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    settings.setValue("QSSEditor/geometry", saveGeometry());
+}
+
+void QSSEditorDialog::on_buttonBox_clicked(QAbstractButton *button)
+{
+    QDialogButtonBox::StandardButton id = m_ui->buttonBox->standardButton(button);
+    if(id == QDialogButtonBox::Ok)
+    {
+        save();
+        accept();
+    }
+    else if(id == QDialogButtonBox::Save)
+    {
+        save();
+    }
+    else
+    {
+        reject();
+    }
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h
new file mode 100644
index 00000000..e2a6c773
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef QSSEDITORDIALOG_H
+#define QSSEDITORDIALOG_H
+
+#include <QDialog>
+#include <QString>
+
+namespace Ui {
+class QSSEditorDialog;
+}
+
+class QAbstractButton;
+
+class QSSEditorDialog : public QDialog
+{
+    Q_OBJECT
+
+public:
+    explicit QSSEditorDialog(const QString &filePath, QWidget *parent = 0);
+    ~QSSEditorDialog();
+
+private slots:
+    void on_buttonBox_clicked(QAbstractButton *button);
+
+private:
+    void save();
+    void hideEvent(QHideEvent *);
+    Ui::QSSEditorDialog *m_ui;
+    QString m_filePath;
+};
+
+#endif // QSSEDITORDIALOG_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui
new file mode 100644
index 00000000..7627b4d4
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsseditordialog.ui
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>QSSEditorDialog</class>
+ <widget class="QDialog" name="QSSEditorDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>643</width>
+    <height>499</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Style Sheet Editor</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="leftMargin">
+    <number>6</number>
+   </property>
+   <property name="rightMargin">
+    <number>6</number>
+   </property>
+   <property name="bottomMargin">
+    <number>6</number>
+   </property>
+   <item>
+    <widget class="QTextEdit" name="textEdit">
+     <property name="acceptRichText">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::Save</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp
new file mode 100644
index 00000000..784ff674
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.cpp
@@ -0,0 +1,232 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QSettings>
+#include <QDir>
+#include <QInputDialog>
+#include <QMessageBox>
+#include <QFile>
+#include <QMenu>
+#include "qt5ct.h"
+#include "qsseditordialog.h"
+#include "qsspage.h"
+#include "ui_qsspage.h"
+
+#define QSS_FULL_PATH_ROLE (Qt::ItemDataRole(Qt::UserRole))
+#define QSS_WRITABLE_ROLE (Qt::ItemDataRole(Qt::UserRole + 1))
+
+QSSPage::QSSPage(QWidget *parent) :
+    TabPage(parent),
+    m_ui(new Ui::QSSPage)
+{
+    m_ui->setupUi(this);
+    QDir("/").mkpath(Qt5CT::userStyleSheetPath());
+
+    m_menu = new QMenu(this);
+    m_menu->addAction(QIcon::fromTheme("accessories-text-editor"), tr("Edit"), this, SLOT(on_editButton_clicked()));
+    m_menu->addAction(tr("Rename"), this, SLOT(on_renameButton_clicked()));
+    m_menu->addSeparator();
+    m_menu->addAction(QIcon::fromTheme("edit-delete"), tr("Remove"), this, SLOT(on_removeButton_clicked()));
+
+    readSettings();
+
+    //icons
+    m_ui->createButton->setIcon(QIcon::fromTheme("document-new"));
+    m_ui->editButton->setIcon(QIcon::fromTheme("accessories-text-editor"));
+    m_ui->removeButton->setIcon(QIcon::fromTheme("edit-delete"));
+}
+
+QSSPage::~QSSPage()
+{
+    delete m_ui;
+}
+
+void QSSPage::writeSettings()
+{
+    QStringList styleSheets;
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+
+    for(int i = 0; i < m_ui->qssListWidget->count(); ++i)
+    {
+        QListWidgetItem *item = m_ui->qssListWidget->item(i);
+        if(item->checkState() == Qt::Checked)
+            styleSheets << item->data(QSS_FULL_PATH_ROLE).toString();
+    }
+
+    settings.setValue("Interface/stylesheets", styleSheets);
+}
+
+void QSSPage::on_qssListWidget_currentItemChanged(QListWidgetItem *current, QListWidgetItem *)
+{
+    if(current)
+    {
+        m_ui->editButton->setEnabled(current->data(QSS_WRITABLE_ROLE).toBool());
+        m_ui->removeButton->setEnabled(current->data(QSS_WRITABLE_ROLE).toBool());
+        m_ui->renameButton->setEnabled(current->data(QSS_WRITABLE_ROLE).toBool());
+    }
+    else
+    {
+        m_ui->editButton->setEnabled(false);
+        m_ui->removeButton->setEnabled(false);
+        m_ui->renameButton->setEnabled(false);
+    }
+}
+
+void QSSPage::on_createButton_clicked()
+{
+    QString name = QInputDialog::getText(this, tr("Enter Style Sheet Name"), tr("File name:"));
+    if(name.isEmpty())
+        return;
+
+    if(!name.endsWith(".qss", Qt::CaseInsensitive))
+        name.append(".qss");
+
+    QString filePath = Qt5CT::userStyleSheetPath() + name;
+
+    if(QFile::exists(filePath))
+    {
+        QMessageBox::warning(this, tr("Error"), tr("The file \"%1\" already exists").arg(filePath));
+        return;
+    }
+
+    //creating empty file
+    QFile file(filePath);
+    file.open(QIODevice::WriteOnly);
+    file.close();
+
+    //creating item
+    QFileInfo info(filePath);
+    QListWidgetItem *item = new QListWidgetItem(info.fileName(),  m_ui->qssListWidget);
+    item->setToolTip(info.filePath());
+    item->setData(QSS_FULL_PATH_ROLE, info.filePath());
+    item->setData(QSS_WRITABLE_ROLE, info.isWritable());
+    item->setCheckState(Qt::Unchecked);
+}
+
+void QSSPage::on_editButton_clicked()
+{
+    QListWidgetItem *item = m_ui->qssListWidget->currentItem();
+    if(item)
+    {
+        QSSEditorDialog dialog(item->data(QSS_FULL_PATH_ROLE).toString(), this);
+        dialog.exec();
+    }
+}
+
+void QSSPage::on_removeButton_clicked()
+{
+    QListWidgetItem *item = m_ui->qssListWidget->currentItem();
+    if(!item)
+        return;
+
+    int button = QMessageBox::question(this, tr("Confirm Remove"),
+                                       tr("Are you sure you want to remove style sheet \"%1\"?")
+                                       .arg(item->text()),
+                                       QMessageBox::Yes | QMessageBox::No);
+    if(button == QMessageBox::Yes)
+    {
+        QFile::remove(item->data(QSS_FULL_PATH_ROLE).toString());
+        delete item;
+    }
+}
+
+void QSSPage::readSettings()
+{
+    //load stylesheets
+    m_ui->qssListWidget->clear();
+    findStyleSheets(Qt5CT::userStyleSheetPath());
+    findStyleSheets(Qt5CT::sharedStyleSheetPath());
+
+    QSettings settings(Qt5CT::configFile(), QSettings::IniFormat);
+    QStringList styleSheets = settings.value("Interface/stylesheets").toStringList();
+    for(int i = 0; i < m_ui->qssListWidget->count(); ++i)
+    {
+        QListWidgetItem *item = m_ui->qssListWidget->item(i);
+        if(styleSheets.contains(item->data(QSS_FULL_PATH_ROLE).toString()))
+            item->setCheckState(Qt::Checked);
+        else
+            item->setCheckState(Qt::Unchecked);
+    }
+}
+
+void QSSPage::findStyleSheets(const QString &path)
+{
+    QDir dir(path);
+    dir.setFilter(QDir::Files);
+    dir.setNameFilters(QStringList() << "*.qss");
+
+    foreach (QFileInfo info, dir.entryInfoList())
+    {
+        QListWidgetItem *item = new QListWidgetItem(info.fileName(),  m_ui->qssListWidget);
+        item->setToolTip(info.filePath());
+        item->setData(QSS_FULL_PATH_ROLE, info.filePath());
+        item->setData(QSS_WRITABLE_ROLE, info.isWritable());
+    }
+}
+
+void QSSPage::on_renameButton_clicked()
+{
+    QListWidgetItem *item = m_ui->qssListWidget->currentItem();
+    if(!item)
+        return;
+
+    QString name = QInputDialog::getText(this, tr("Rename Style Sheet"), tr("Style sheet name:"),
+                          QLineEdit::Normal, item->text(), 0);
+    if(name.isEmpty())
+        return;
+
+    if(!m_ui->qssListWidget->findItems(name, Qt::MatchExactly).isEmpty())
+    {
+        QMessageBox::warning(this, tr("Error"), tr("The style sheet \"%1\" already exists").arg(name));
+        return;
+    }
+
+    if(!name.endsWith(".qss", Qt::CaseInsensitive))
+            name.append(".qss");
+
+    QString newPath = Qt5CT::userStyleSheetPath() + name;
+
+    if(!QFile::rename(item->data(QSS_FULL_PATH_ROLE).toString(), newPath))
+    {
+        QMessageBox::warning(this, tr("Error"), tr("Unable to rename file"));
+        return;
+    }
+
+    item->setText(name);
+    item->setData(QSS_FULL_PATH_ROLE, newPath);
+    item->setToolTip(newPath);
+}
+
+void QSSPage::on_qssListWidget_customContextMenuRequested(const QPoint &pos)
+{
+    QListWidgetItem *item = m_ui->qssListWidget->currentItem();
+    if(item && item->data(QSS_WRITABLE_ROLE).toBool())
+    {
+        m_menu->exec(m_ui->qssListWidget->viewport()->mapToGlobal(pos));
+    }
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h
new file mode 100644
index 00000000..665f68c0
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef QSSPAGE_H
+#define QSSPAGE_H
+
+#include "tabpage.h"
+
+namespace Ui {
+class QSSPage;
+}
+
+class QListWidgetItem;
+class QMenu;
+
+class QSSPage : public TabPage
+{
+    Q_OBJECT
+
+public:
+    explicit QSSPage(QWidget *parent = 0);
+    ~QSSPage();
+
+    void writeSettings();
+
+private slots:
+    void on_qssListWidget_currentItemChanged(QListWidgetItem *current, QListWidgetItem *);
+    void on_createButton_clicked();
+    void on_editButton_clicked();
+    void on_removeButton_clicked();
+    void on_renameButton_clicked();
+    void on_qssListWidget_customContextMenuRequested(const QPoint &pos);
+
+private:
+    void readSettings();
+    void findStyleSheets(const QString &path);
+    Ui::QSSPage *m_ui;
+    QMenu *m_menu;
+};
+
+#endif // QSSPAGE_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.ui b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.ui
new file mode 100644
index 00000000..124b4dc6
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qsspage.ui
@@ -0,0 +1,84 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>QSSPage</class>
+ <widget class="QWidget" name="QSSPage">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>483</width>
+    <height>320</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string notr="true">Style Sheet Editor</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="0">
+    <widget class="QPushButton" name="createButton">
+     <property name="enabled">
+      <bool>true</bool>
+     </property>
+     <property name="text">
+      <string>Create</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="3">
+    <widget class="QPushButton" name="removeButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="text">
+      <string>Remove</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="5">
+    <spacer name="horizontalSpacer">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>189</width>
+       <height>20</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="0" column="0" colspan="6">
+    <widget class="QListWidget" name="qssListWidget">
+     <property name="contextMenuPolicy">
+      <enum>Qt::CustomContextMenu</enum>
+     </property>
+     <property name="alternatingRowColors">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QPushButton" name="editButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="text">
+      <string>Edit</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="2">
+    <widget class="QPushButton" name="renameButton">
+     <property name="enabled">
+      <bool>false</bool>
+     </property>
+     <property name="text">
+      <string>Rename</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.cpp
new file mode 100644
index 00000000..b83f43df
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.cpp
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <QDir>
+#include <QLocale>
+#include "qt5ct.h"
+
+#ifndef QT5CT_DATADIR
+#define QT5CT_DATADIR "/usr/share"
+#endif
+
+
+QString Qt5CT::configPath()
+{
+    return QDir::homePath() + "/.config/qt5ct/";
+}
+
+QString Qt5CT::configFile()
+{
+    return configPath() + "qt5ct.conf";
+}
+
+QStringList Qt5CT::iconPaths()
+{
+    QString xdgDataDirs = qgetenv("XDG_DATA_DIRS");
+    QString xdgDataHome = qgetenv("XDG_DATA_HOME");
+
+    QStringList paths;
+    paths << QDir::homePath() + "/.icons/";
+
+    if(xdgDataDirs.isEmpty())
+    {
+        paths << "/usr/share/icons";
+        paths << "/usr/local/share/icons";
+    }
+    else
+    {
+        foreach (QString p, xdgDataDirs.split(":"))
+            paths << QDir(p + "/icons/").absolutePath();
+    }
+
+    if(xdgDataHome.isEmpty())
+        xdgDataHome = QDir::homePath() + "/.local/share";
+
+    paths << "/usr/share/pixmaps";
+    paths << xdgDataHome + "/icons";
+    paths.removeDuplicates();
+
+    //remove invalid
+    foreach (QString p, paths)
+    {
+        if(!QDir(p).exists())
+            paths.removeAll(p);
+    }
+    return paths;
+}
+
+QString Qt5CT::userStyleSheetPath()
+{
+    return configPath() + "qss/";
+}
+
+QString Qt5CT::sharedStyleSheetPath()
+{
+    return QT5CT_DATADIR"/qt5ct/qss/";
+}
+
+QString Qt5CT::userColorSchemePath()
+{
+    return configPath() + "colors/";
+}
+
+QString Qt5CT::sharedColorSchemePath()
+{
+    return QT5CT_DATADIR"/qt5ct/colors/";
+}
+
+QString Qt5CT::systemLanguageID()
+{
+#ifdef Q_OS_UNIX
+    QByteArray v = qgetenv ("LC_ALL");
+    if (v.isEmpty())
+        v = qgetenv ("LC_MESSAGES");
+    if (v.isEmpty())
+        v = qgetenv ("LANG");
+    if (!v.isEmpty())
+        return QLocale (v).name();
+#endif
+    return  QLocale::system().name();
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.desktop b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.desktop
new file mode 100644
index 00000000..1c5f6560
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.desktop
@@ -0,0 +1,60 @@
+[Desktop Entry]
+X-Desktop-File-Install-Version=0.11
+Name=Qt5 Settings
+
+Comment=Qt5 Configuration Tool
+
+Comment[ar]= أداة اعداد Qt5
+Name[ar]=إعدادات Qt5 
+
+Comment[bg]=Инструмент за настройка на Qt5
+Name[bg]=Настройки на Qt5
+
+Comment[de]=Qt5-Konfigurationswerkzeug
+Name[de]=Qt5-Einstellungen
+
+Comment[el]=Εργαλείο διαμόρφωσης της Qt5
+Name[el]=Ρυθμίσεις Qt5
+
+Comment[es_ES]=Herramienta de configuración de QT5
+Name[es_ES]=Ajustes QT5
+
+Comment[fr]=Un outil de configuration de Qt5
+Name[fr]=Paramètres de Qt5
+
+Comment[he]=כלי תצורה Qt5
+Name[he]=הגדרות Qt5
+
+Comment[ru]=Программа для настройки Qt5
+Name[ru]=Настройки Qt5
+
+Comment[cs]=Nástroj na nastavení Qt5
+Name[cs]=Nastavení Qt5
+
+Comment[it_IT]=Strumento di configurazione Qt5
+Name[it_IT]=Impostazioni Qt5
+
+Comment[nl_NL]=Qt5-instellingengereedschap
+Name[nl_NL]=Qt5-instellingen
+
+Comment[pl]=Narzędzie konfiguracji Qt5
+Name[pl]=Ustawienia Qt5
+
+Comment[sk]=Qt5 konfiguračný nástroj
+Name[sk]=Qt5 nastavenia
+
+Comment[sr]=Qt5 конфигурациони алат
+Name[sr]=Qt5 поставке
+
+Comment[zh_CN]=Qt5 配置工具
+Name[zh_CN]=Qt5 设置
+
+Comment[zh_TW]=Qt5 設定工具
+Name[zh_TW]=Qt5 設定
+
+
+Exec=qt5ct
+Icon=preferences-desktop-theme
+Terminal=false
+Type=Application
+Categories=Settings;DesktopSettings;Qt;
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.h
new file mode 100644
index 00000000..1aecd741
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef QT5CT_H
+#define QT5CT_H
+
+#define QT5CT_VERSION_MAJOR 0
+#define QT5CT_VERSION_MINOR 33
+
+#define QT5CT_TOSTRING(s) #s
+#define QT5CT_STRINGIFY(s)         QT5CT_TOSTRING(s)
+
+#define QT5CT_VERSION_INT (QT5CT_VERSION_MAJOR<<8 | QT5CT_VERSION_MINOR)
+#define QT5CT_VERSION_STR QT5CT_STRINGIFY(QT5CT_VERSION_MAJOR.QT5CT_VERSION_MINOR)
+
+#include <QString>
+#include <QStringList>
+
+class Qt5CT
+{
+public:
+    static QString configPath();
+    static QString configFile();
+    static QStringList iconPaths();
+    static QString userStyleSheetPath();
+    static QString sharedStyleSheetPath();
+    static QString userColorSchemePath();
+    static QString sharedColorSchemePath();
+    static QString systemLanguageID();
+
+private:
+    Qt5CT() {}
+};
+
+#endif // QT5CT_H
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.pro b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.pro
new file mode 100644
index 00000000..0f9724f1
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/qt5ct.pro
@@ -0,0 +1,57 @@
+include(../../qt5ct.pri)
+
+TEMPLATE = app
+
+QT += widgets
+
+SOURCES += \
+    main.cpp \
+    mainwindow.cpp \
+    tabpage.cpp \
+    appearancepage.cpp \
+    fontspage.cpp \
+    qt5ct.cpp \
+    paletteeditdialog.cpp \
+    iconthemepage.cpp \
+    interfacepage.cpp \
+    fontconfigdialog.cpp \
+    qsspage.cpp \
+    qsseditordialog.cpp
+
+FORMS += \
+    mainwindow.ui \
+    appearancepage.ui \
+    fontspage.ui \
+    paletteeditdialog.ui \
+    iconthemepage.ui \
+    interfacepage.ui \
+    fontconfigdialog.ui \
+    previewform.ui \
+    qsspage.ui \
+    qsseditordialog.ui
+
+HEADERS += \
+    mainwindow.h \
+    tabpage.h \
+    appearancepage.h \
+    fontspage.h \
+    qt5ct.h \
+    paletteeditdialog.h \
+    iconthemepage.h \
+    interfacepage.h \
+    fontconfigdialog.h \
+    qsspage.h \
+    qsseditordialog.h
+
+!equals (DISABLE_WIDGETS,1) {
+   DEFINES += USE_WIDGETS
+}
+
+RESOURCES = translations/translations.qrc
+
+target.path = $$BINDIR
+
+desktop.files = qt5ct.desktop
+desktop.path = $$DATADIR/applications
+
+INSTALLS += target desktop
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.cpp b/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.cpp
new file mode 100644
index 00000000..251ce024
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.cpp
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "tabpage.h"
+
+TabPage::TabPage(QWidget *parent) : QWidget(parent)
+{
+}
diff --git a/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.h b/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.h
new file mode 100644
index 00000000..ac285054
--- /dev/null
+++ b/src-qt5/core/lumina-theme-engine/src/lthemeengine/tabpage.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2014-2017, Ilya Kotov <forkotov02@hotmail.ru>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TABPAGE_H
+#define TABPAGE_H
+
+#include <QWidget>
+
+class TabPage : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit TabPage(QWidget *parent = 0);
+
+    virtual void writeSettings() = 0;
+};
+
+#endif // TABPAGE_H