diff --git a/kcms/lookandfeel/kcm.cpp b/kcms/lookandfeel/kcm.cpp
index c1eb8c522..48ca9df5e 100644
--- a/kcms/lookandfeel/kcm.cpp
+++ b/kcms/lookandfeel/kcm.cpp
@@ -1,708 +1,720 @@
 /* This file is part of the KDE Project
    Copyright (c) 2014 Marco Martin <mart@kde.org>
    Copyright (c) 2014 Vishesh Handa <me@vhanda.in>
    Copyright (c) 2019 Cyril Rossi <cyril.rossi@enioka.com>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License version 2 as published by the Free Software Foundation.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #include "kcm.h"
 #include "../krdb/krdb.h"
 #include "config-kcm.h"
 #include "config-workspace.h"
 #include <klauncher_iface.h>
 
 #include <KAboutData>
 #include <KSharedConfig>
 #include <KGlobalSettings>
 #include <KIconLoader>
 #include <KAutostart>
 #include <KRun>
 #include <KService>
 
 #include <QDebug>
 #include <QQuickItem>
 #include <QQuickWindow>
 #include <QStandardPaths>
 #include <QProcess>
 #include <QStandardItemModel>
 #include <QX11Info>
+#include <QStyle>
+#include <QStyleFactory>
 
 #include <KLocalizedString>
 #include <KPackage/PackageLoader>
 
 #include <X11/Xlib.h>
 
 #include "lookandfeelsettings.h"
 
 #ifdef HAVE_XCURSOR
 #   include "../cursortheme/xcursor/xcursortheme.h"
 #   include <X11/Xcursor/Xcursor.h>
 #endif
 
 #ifdef HAVE_XFIXES
 #  include <X11/extensions/Xfixes.h>
 #endif
 
 KCMLookandFeel::KCMLookandFeel(QObject *parent, const QVariantList &args)
     : KQuickAddons::ManagedConfigModule(parent, args)
     , m_settings(new LookAndFeelSettings(this))
     , m_config(QStringLiteral("kdeglobals"))
     , m_configGroup(m_config.group("KDE"))
     , m_applyColors(true)
     , m_applyWidgetStyle(true)
     , m_applyIcons(true)
     , m_applyPlasmaTheme(true)
     , m_applyCursors(true)
     , m_applyWindowSwitcher(true)
     , m_applyDesktopSwitcher(true)
     , m_resetDefaultLayout(false)
     , m_applyWindowDecoration(true)
 {
     qmlRegisterType<LookAndFeelSettings>();
     qmlRegisterType<QStandardItemModel>();
     qmlRegisterType<KCMLookandFeel>();
 
     KAboutData *about = new KAboutData(QStringLiteral("kcm_lookandfeel"), i18n("Global Theme"),
                                        QStringLiteral("0.1"), QString(), KAboutLicense::LGPL);
     about->addAuthor(i18n("Marco Martin"), QString(), QStringLiteral("mart@kde.org"));
     setAboutData(about);
     setButtons(Apply | Default);
 
     m_model = new QStandardItemModel(this);
     QHash<int, QByteArray> roles = m_model->roleNames();
     roles[PluginNameRole] = "pluginName";
     roles[DescriptionRole] = "description";
     roles[ScreenshotRole] = "screenshot";
     roles[FullScreenPreviewRole] = "fullScreenPreview";
     roles[HasSplashRole] = "hasSplash";
     roles[HasLockScreenRole] = "hasLockScreen";
     roles[HasRunCommandRole] = "hasRunCommand";
     roles[HasLogoutRole] = "hasLogout";
 
     roles[HasColorsRole] = "hasColors";
     roles[HasWidgetStyleRole] = "hasWidgetStyle";
     roles[HasIconsRole] = "hasIcons";
     roles[HasPlasmaThemeRole] = "hasPlasmaTheme";
     roles[HasCursorsRole] = "hasCursors";
     roles[HasWindowSwitcherRole] = "hasWindowSwitcher";
     roles[HasDesktopSwitcherRole] = "hasDesktopSwitcher";
     m_model->setItemRoleNames(roles);
     loadModel();
 }
 
 KCMLookandFeel::~KCMLookandFeel()
 {
 }
 
 void KCMLookandFeel::reloadModel()
 {
     loadModel();
 }
 
 QStandardItemModel *KCMLookandFeel::lookAndFeelModel() const
 {
     return m_model;
 }
 
 int KCMLookandFeel::pluginIndex(const QString &pluginName) const
 {
     const auto results = m_model->match(m_model->index(0, 0), PluginNameRole, pluginName);
     if (results.count() == 1) {
         return results.first().row();
     }
 
     return -1;
 }
 
 QList<KPackage::Package> KCMLookandFeel::availablePackages(const QStringList &components)
 {
     QList<KPackage::Package> packages;
     QStringList paths;
     const QStringList dataPaths = QStandardPaths::standardLocations(QStandardPaths::GenericDataLocation);
 
     paths.reserve(dataPaths.count());
     for (const QString &path : dataPaths) {
         QDir dir(path + QStringLiteral("/plasma/look-and-feel"));
         paths << dir.entryList(QDir::AllDirs | QDir::NoDotAndDotDot);
     }
 
     for (const QString &path : paths) {
         KPackage::Package pkg = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/LookAndFeel"));
         pkg.setPath(path);
         pkg.setFallbackPackage(KPackage::Package());
         if (components.isEmpty()) {
             packages << pkg;
         } else {
             for (const auto &component : components) {
                 if (!pkg.filePath(component.toUtf8()).isEmpty()) {
                     packages << pkg;
                     break;
                 }
             }
         }
     }
 
     return packages;
 }
 
 LookAndFeelSettings *KCMLookandFeel::lookAndFeelSettings() const
 {
     return m_settings;
 }
 
 void KCMLookandFeel::loadModel()
 {
     m_model->clear();
 
     const QList<KPackage::Package> pkgs = availablePackages({"defaults", "layouts"});
     for (const KPackage::Package &pkg : pkgs) {
         if (!pkg.metadata().isValid()) {
             continue;
         }
         QStandardItem *row = new QStandardItem(pkg.metadata().name());
         row->setData(pkg.metadata().pluginId(), PluginNameRole);
         row->setData(pkg.metadata().description(), DescriptionRole);
         row->setData(pkg.filePath("preview"), ScreenshotRole);
         row->setData(pkg.filePath("fullscreenpreview"), FullScreenPreviewRole);
 
         //What the package provides
         row->setData(!pkg.filePath("splashmainscript").isEmpty(), HasSplashRole);
         row->setData(!pkg.filePath("lockscreenmainscript").isEmpty(), HasLockScreenRole);
         row->setData(!pkg.filePath("runcommandmainscript").isEmpty(), HasRunCommandRole);
         row->setData(!pkg.filePath("logoutmainscript").isEmpty(), HasLogoutRole);
 
         if (!pkg.filePath("defaults").isEmpty()) {
             KSharedConfigPtr conf = KSharedConfig::openConfig(pkg.filePath("defaults"));
             KConfigGroup cg(conf, "kdeglobals");
             cg = KConfigGroup(&cg, "General");
             bool hasColors = !cg.readEntry("ColorScheme", QString()).isEmpty();
             if (!hasColors) {
                 hasColors = !pkg.filePath("colors").isEmpty();
             }
             row->setData(hasColors, HasColorsRole);
             cg = KConfigGroup(&cg, "KDE");
             row->setData(!cg.readEntry("widgetStyle", QString()).isEmpty(), HasWidgetStyleRole);
             cg = KConfigGroup(conf, "kdeglobals");
             cg = KConfigGroup(&cg, "Icons");
             row->setData(!cg.readEntry("Theme", QString()).isEmpty(), HasIconsRole);
 
             cg = KConfigGroup(conf, "kdeglobals");
             cg = KConfigGroup(&cg, "Theme");
             row->setData(!cg.readEntry("name", QString()).isEmpty(), HasPlasmaThemeRole);
 
             cg = KConfigGroup(conf, "kcminputrc");
             cg = KConfigGroup(&cg, "Mouse");
             row->setData(!cg.readEntry("cursorTheme", QString()).isEmpty(), HasCursorsRole);
 
             cg = KConfigGroup(conf, "kwinrc");
             cg = KConfigGroup(&cg, "WindowSwitcher");
             row->setData(!cg.readEntry("LayoutName", QString()).isEmpty(), HasWindowSwitcherRole);
 
             cg = KConfigGroup(conf, "kwinrc");
             cg = KConfigGroup(&cg, "DesktopSwitcher");
             row->setData(!cg.readEntry("LayoutName", QString()).isEmpty(), HasDesktopSwitcherRole);
         }
 
         m_model->appendRow(row);
     }
     m_model->sort(0 /*column*/);
 
     //Model has been cleared so pretend the selected look and fell changed to force view update
     emit m_settings->lookAndFeelPackageChanged();
 }
 
 void KCMLookandFeel::load()
 {
     ManagedConfigModule::load();
 
     m_package = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/LookAndFeel"));
     m_package.setPath(m_settings->lookAndFeelPackage());
 }
 
 void KCMLookandFeel::save()
 {
     KPackage::Package package = KPackage::PackageLoader::self()->loadPackage(QStringLiteral("Plasma/LookAndFeel"));
     package.setPath(m_settings->lookAndFeelPackage());
 
     if (!package.isValid()) {
         return;
     }
 
     ManagedConfigModule::save();
 
     if (m_resetDefaultLayout) {
         QDBusMessage message = QDBusMessage::createMethodCall(QStringLiteral("org.kde.plasmashell"), QStringLiteral("/PlasmaShell"),
                                                    QStringLiteral("org.kde.PlasmaShell"), QStringLiteral("loadLookAndFeelDefaultLayout"));
 
         QList<QVariant> args;
         args << m_settings->lookAndFeelPackage();
         message.setArguments(args);
 
         QDBusConnection::sessionBus().call(message, QDBus::NoBlock);
     }
 
     if (!package.filePath("defaults").isEmpty()) {
         KSharedConfigPtr conf = KSharedConfig::openConfig(package.filePath("defaults"));
         KConfigGroup cg(conf, "kdeglobals");
         cg = KConfigGroup(&cg, "KDE");
         if (m_applyWidgetStyle) {
-            setWidgetStyle(cg.readEntry("widgetStyle", QString()));
+            QString widgetStyle = cg.readEntry("widgetStyle", QString());
+            // Some global themes refer to breeze's widgetStyle with a lowercase b.
+            if (widgetStyle == QStringLiteral("breeze")) {
+                widgetStyle = QStringLiteral("Breeze");
+            }
+            setWidgetStyle(widgetStyle);
         }
 
         if (m_applyColors) {
             QString colorsFile = package.filePath("colors");
             KConfigGroup cg(conf, "kdeglobals");
             cg = KConfigGroup(&cg, "General");
             QString colorScheme = cg.readEntry("ColorScheme", QString());
 
             if (!colorsFile.isEmpty()) {
                 if (!colorScheme.isEmpty()) {
                     setColors(colorScheme, colorsFile);
                 } else {
                     setColors(package.metadata().name(), colorsFile);
                 }
             } else if (!colorScheme.isEmpty()) {
                 colorScheme.remove(QLatin1Char('\'')); // So Foo's does not become FooS
                 QRegExp fixer(QStringLiteral("[\\W,.-]+(.?)"));
                 int offset;
                 while ((offset = fixer.indexIn(colorScheme)) >= 0) {
                     colorScheme.replace(offset, fixer.matchedLength(), fixer.cap(1).toUpper());
                 }
                 colorScheme.replace(0, 1, colorScheme.at(0).toUpper());
 
                 //NOTE: why this loop trough all the scheme files?
                 //the scheme theme name is an heuristic, there is no plugin metadata whatsoever.
                 //is based on the file name stripped from weird characters or the
                 //eventual id- prefix store.kde.org puts, so we can just find a
                 //theme that ends as the specified name
                 bool schemeFound = false;
                 const QStringList schemeDirs = QStandardPaths::locateAll(QStandardPaths::GenericDataLocation, QStringLiteral("color-schemes"), QStandardPaths::LocateDirectory);
                 for (const QString &dir : schemeDirs) {
                     const QStringList fileNames = QDir(dir).entryList(QStringList()<<QStringLiteral("*.colors"));
                     for (const QString &file : fileNames) {
                         if (file.endsWith(colorScheme + QStringLiteral(".colors"))) {
                             setColors(colorScheme, dir + QLatin1Char('/') + file);
                             schemeFound = true;
                             break;
                         }
                     }
                     if (schemeFound) {
                         break;
                     }
                 }
             }
         }
 
         if (m_applyIcons) {
             cg = KConfigGroup(conf, "kdeglobals");
             cg = KConfigGroup(&cg, "Icons");
             setIcons(cg.readEntry("Theme", QString()));
         }
 
         if (m_applyPlasmaTheme) {
             cg = KConfigGroup(conf, "plasmarc");
             cg = KConfigGroup(&cg, "Theme");
             setPlasmaTheme(cg.readEntry("name", QString()));
         }
 
         if (m_applyCursors) {
             cg = KConfigGroup(conf, "kcminputrc");
             cg = KConfigGroup(&cg, "Mouse");
             setCursorTheme(cg.readEntry("cursorTheme", QString()));
         }
 
         if (m_applyWindowSwitcher) {
             cg = KConfigGroup(conf, "kwinrc");
             cg = KConfigGroup(&cg, "WindowSwitcher");
             setWindowSwitcher(cg.readEntry("LayoutName", QString()));
         }
 
         if (m_applyDesktopSwitcher) {
             cg = KConfigGroup(conf, "kwinrc");
             cg = KConfigGroup(&cg, "DesktopSwitcher");
             setDesktopSwitcher(cg.readEntry("LayoutName", QString()));
         }
 
         if (m_applyWindowDecoration) {
             cg = KConfigGroup(conf, "kwinrc");
             cg = KConfigGroup(&cg, "org.kde.kdecoration2");
 #ifdef HAVE_BREEZE_DECO
             setWindowDecoration(cg.readEntry("library", QStringLiteral(BREEZE_KDECORATION_PLUGIN_ID)), cg.readEntry("theme", QStringLiteral("Breeze")));
 #else
             setWindowDecoration(cg.readEntry("library", QStringLiteral("org.kde.kwin.aurorae")), cg.readEntry("theme", QStringLiteral("kwin4_decoration_qml_plastik")));
 #endif
         }
 
         // Reload KWin if something changed, but only once.
         if (m_applyWindowSwitcher || m_applyDesktopSwitcher || m_applyWindowDecoration) {
             QDBusMessage message = QDBusMessage::createSignal(QStringLiteral("/KWin"),
                                                     QStringLiteral("org.kde.KWin"),
                                                     QStringLiteral("reloadConfig"));
             QDBusConnection::sessionBus().send(message);
         }
 
         //autostart
         if (m_resetDefaultLayout) {
             //remove all the old package to autostart
             {
                 KSharedConfigPtr oldConf = KSharedConfig::openConfig(m_package.filePath("defaults"));
                 cg = KConfigGroup(oldConf, QStringLiteral("Autostart"));
                 const QStringList autostartServices = cg.readEntry("Services", QStringList());
 
                 if (qEnvironmentVariableIsSet("KDE_FULL_SESSION")) {
                     for (const QString &serviceFile : autostartServices) {
                         KService service(serviceFile + QStringLiteral(".desktop"));
                         KAutostart as(serviceFile);
                         as.setAutostarts(false);
                         //FIXME: quite ugly way to stop things, and what about non KDE things?
                         QProcess::startDetached(QStringLiteral("kquitapp5"), {QStringLiteral("--service"), service.property(QStringLiteral("X-DBUS-ServiceName")).toString()});
                     }
                 }
             }
             //Set all the stuff in the new lnf to autostart
             {
                 cg = KConfigGroup(conf, QStringLiteral("Autostart"));
                 const QStringList autostartServices = cg.readEntry("Services", QStringList());
 
                 for (const QString &serviceFile : autostartServices) {
                     KService service(serviceFile + QStringLiteral(".desktop"));
                     KAutostart as(serviceFile);
                     as.setCommand(service.exec());
                     as.setAutostarts(true);
                     if (qEnvironmentVariableIsSet("KDE_FULL_SESSION")) {
                         KRun::runApplication(service, {}, nullptr);
                     }
                 }
             }
         }
     }
 
     //TODO: option to enable/disable apply? they don't seem required by UI design
     setSplashScreen(m_settings->lookAndFeelPackage());
     setLockScreen(m_settings->lookAndFeelPackage());
 
     m_configGroup.sync();
     m_package.setPath(m_settings->lookAndFeelPackage());
     runRdb(KRdbExportQtColors | KRdbExportGtkTheme | KRdbExportColors | KRdbExportQtSettings | KRdbExportXftSettings);
 }
 
 void KCMLookandFeel::setWidgetStyle(const QString &style)
 {
     if (style.isEmpty()) {
         return;
     }
 
-    m_configGroup.writeEntry("widgetStyle", style);
-    m_configGroup.sync();
-    //FIXME: changing style on the fly breaks QQuickWidgets
-    KGlobalSettings::self()->emitChange(KGlobalSettings::StyleChanged);
+    // Some global themes use styles that may not be installed.
+    // Test if style can be installed before updating the config.
+    QScopedPointer<QStyle> newStyle(QStyleFactory::create(style));
+    if (newStyle) {
+        m_configGroup.writeEntry("widgetStyle", style);
+        m_configGroup.sync();
+        //FIXME: changing style on the fly breaks QQuickWidgets
+        KGlobalSettings::self()->emitChange(KGlobalSettings::StyleChanged);
+    }
 }
 
 void KCMLookandFeel::setColors(const QString &scheme, const QString &colorFile)
 {
     if (scheme.isEmpty() && colorFile.isEmpty()) {
         return;
     }
 
     KSharedConfigPtr conf = KSharedConfig::openConfig(colorFile, KSharedConfig::CascadeConfig);
     foreach (const QString &grp, conf->groupList()) {
         KConfigGroup cg(conf, grp);
         KConfigGroup cg2(&m_config, grp);
         cg.copyTo(&cg2);
     }
 
     KConfigGroup configGroup(&m_config, "General");
     configGroup.writeEntry("ColorScheme", scheme);
 
     configGroup.sync();
     KGlobalSettings::self()->emitChange(KGlobalSettings::PaletteChanged);
 }
 
 void KCMLookandFeel::setIcons(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfigGroup cg(&m_config, "Icons");
     cg.writeEntry("Theme", theme);
     cg.sync();
 
     for (int i=0; i < KIconLoader::LastGroup; i++) {
         KIconLoader::emitChange(KIconLoader::Group(i));
     }
 }
 
 void KCMLookandFeel::setPlasmaTheme(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("plasmarc"));
     KConfigGroup cg(&config, "Theme");
     cg.writeEntry("name", theme);
     cg.sync();
 }
 
 void KCMLookandFeel::setCursorTheme(const QString themeName)
 {
     //TODO: use pieces of cursor kcm when moved to plasma-desktop
     if (themeName.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("kcminputrc"));
     KConfigGroup cg(&config, "Mouse");
     cg.writeEntry("cursorTheme", themeName);
     cg.sync();
 
 #ifdef HAVE_XCURSOR
     // Require the Xcursor version that shipped with X11R6.9 or greater, since
     // in previous versions the Xfixes code wasn't enabled due to a bug in the
     // build system (freedesktop bug #975).
 #if defined(HAVE_XFIXES) && XFIXES_MAJOR >= 2 && XCURSOR_LIB_VERSION >= 10105
     const int cursorSize = cg.readEntry("cursorSize", 0);
 
     QDir themeDir = cursorThemeDir(themeName, 0);
 
     if (!themeDir.exists()) {
         return;
     }
 
     XCursorTheme theme(themeDir);
 
     if (!CursorTheme::haveXfixes()) {
         return;
     }
 
     // Set up the proper launch environment for newly started apps
     OrgKdeKLauncherInterface klauncher(QStringLiteral("org.kde.klauncher5"),
                                        QStringLiteral("/KLauncher"),
                                        QDBusConnection::sessionBus());
     klauncher.setLaunchEnv(QStringLiteral("XCURSOR_THEME"), themeName);
 
     // Update the Xcursor X resources
     runRdb(0);
 
     // Notify all applications that the cursor theme has changed
     KGlobalSettings::self()->emitChange(KGlobalSettings::CursorChanged);
 
     // Reload the standard cursors
     QStringList names;
 
     // Qt cursors
     names << QStringLiteral("left_ptr")       << QStringLiteral("up_arrow")      << QStringLiteral("cross")      << QStringLiteral("wait")
           << QStringLiteral("left_ptr_watch") << QStringLiteral("ibeam")         << QStringLiteral("size_ver")   << QStringLiteral("size_hor")
           << QStringLiteral("size_bdiag")     << QStringLiteral("size_fdiag")    << QStringLiteral("size_all")   << QStringLiteral("split_v")
           << QStringLiteral("split_h")        << QStringLiteral("pointing_hand") << QStringLiteral("openhand")
           << QStringLiteral("closedhand")     << QStringLiteral("forbidden")     << QStringLiteral("whats_this") << QStringLiteral("copy") << QStringLiteral("move") << QStringLiteral("link");
 
     // X core cursors
     names << QStringLiteral("X_cursor")            << QStringLiteral("right_ptr")           << QStringLiteral("hand1")
           << QStringLiteral("hand2")               << QStringLiteral("watch")               << QStringLiteral("xterm")
           << QStringLiteral("crosshair")           << QStringLiteral("left_ptr_watch")      << QStringLiteral("center_ptr")
           << QStringLiteral("sb_h_double_arrow")   << QStringLiteral("sb_v_double_arrow")   << QStringLiteral("fleur")
           << QStringLiteral("top_left_corner")     << QStringLiteral("top_side")            << QStringLiteral("top_right_corner")
           << QStringLiteral("right_side")          << QStringLiteral("bottom_right_corner") << QStringLiteral("bottom_side")
           << QStringLiteral("bottom_left_corner")  << QStringLiteral("left_side")           << QStringLiteral("question_arrow")
           << QStringLiteral("pirate");
 
     foreach (const QString &name, names) {
         XFixesChangeCursorByName(QX11Info::display(), theme.loadCursor(name, cursorSize), QFile::encodeName(name));
     }
 
 #else
     KMessageBox::information(this,
                                  i18n("You have to restart the Plasma session for these changes to take effect."),
                                  i18n("Cursor Settings Changed"), "CursorSettingsChanged");
 #endif
 #endif
 }
 
 QDir KCMLookandFeel::cursorThemeDir(const QString &theme, const int depth)
 {
     // Prevent infinite recursion
     if (depth > 10) {
         return QDir();
     }
 
     // Search each icon theme directory for 'theme'
     foreach (const QString &baseDir, cursorSearchPaths()) {
         QDir dir(baseDir);
         if (!dir.exists() || !dir.cd(theme)) {
             continue;
         }
 
         // If there's a cursors subdir, we'll assume this is a cursor theme
         if (dir.exists(QStringLiteral("cursors"))) {
             return dir;
         }
 
         // If the theme doesn't have an index.theme file, it can't inherit any themes.
         if (!dir.exists(QStringLiteral("index.theme"))) {
             continue;
         }
 
         // Open the index.theme file, so we can get the list of inherited themes
         KConfig config(dir.path() + QStringLiteral("/index.theme"), KConfig::NoGlobals);
         KConfigGroup cg(&config, "Icon Theme");
 
         // Recurse through the list of inherited themes, to check if one of them
         // is a cursor theme.
         QStringList inherits = cg.readEntry("Inherits", QStringList());
         foreach (const QString &inherit, inherits) {
             // Avoid possible DoS
             if (inherit == theme) {
                 continue;
             }
 
             if (cursorThemeDir(inherit, depth + 1).exists()) {
                 return dir;
             }
         }
     }
 
     return QDir();
 }
 
 const QStringList KCMLookandFeel::cursorSearchPaths()
 {
     if (!m_cursorSearchPaths.isEmpty())
         return m_cursorSearchPaths;
 
 #ifdef HAVE_XCURSOR
 #if XCURSOR_LIB_MAJOR == 1 && XCURSOR_LIB_MINOR < 1
     // These are the default paths Xcursor will scan for cursor themes
     QString path("~/.icons:/usr/share/icons:/usr/share/pixmaps:/usr/X11R6/lib/X11/icons");
 
     // If XCURSOR_PATH is set, use that instead of the default path
     char *xcursorPath = std::getenv("XCURSOR_PATH");
     if (xcursorPath)
         path = xcursorPath;
 #else
     // Get the search path from Xcursor
     QString path = XcursorLibraryPath();
 #endif
 
     // Separate the paths
     m_cursorSearchPaths = path.split(QLatin1Char(':'), QString::SkipEmptyParts);
 
     // Remove duplicates
     QMutableStringListIterator i(m_cursorSearchPaths);
     while (i.hasNext())
     {
         const QString path = i.next();
         QMutableStringListIterator j(i);
         while (j.hasNext())
             if (j.next() == path)
                 j.remove();
     }
 
     // Expand all occurrences of ~/ to the home dir
     m_cursorSearchPaths.replaceInStrings(QRegExp(QStringLiteral("^~\\/")), QDir::home().path() + QLatin1Char('/'));
     return m_cursorSearchPaths;
 #else
     return QStringList();
 #endif
 }
 
 void KCMLookandFeel::setSplashScreen(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("ksplashrc"));
     KConfigGroup cg(&config, "KSplash");
     cg.writeEntry("Theme", theme);
     //TODO: a way to set none as spash in the l&f
     cg.writeEntry("Engine", "KSplashQML");
     cg.sync();
 }
 
 void KCMLookandFeel::setLockScreen(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("kscreenlockerrc"));
     KConfigGroup cg(&config, "Greeter");
     cg.writeEntry("Theme", theme);
     cg.sync();
 }
 
 void KCMLookandFeel::setWindowSwitcher(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("kwinrc"));
     KConfigGroup cg(&config, "TabBox");
     cg.writeEntry("LayoutName", theme);
     cg.sync();
 }
 
 void KCMLookandFeel::setDesktopSwitcher(const QString &theme)
 {
     if (theme.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("kwinrc"));
     KConfigGroup cg(&config, "TabBox");
     cg.writeEntry("DesktopLayout", theme);
     cg.writeEntry("DesktopListLayout", theme);
     cg.sync();
 }
 
 void KCMLookandFeel::setWindowDecoration(const QString &library, const QString &theme)
 {
     if (library.isEmpty()) {
         return;
     }
 
     KConfig config(QStringLiteral("kwinrc"));
     KConfigGroup cg(&config, "org.kde.kdecoration2");
     cg.writeEntry("library", library);
     cg.writeEntry("theme", theme);
 
     cg.sync();
     // Reload KWin.
     QDBusMessage message = QDBusMessage::createSignal(QStringLiteral("/KWin"),
                                                       QStringLiteral("org.kde.KWin"),
                                                       QStringLiteral("reloadConfig"));
     QDBusConnection::sessionBus().send(message);
 }
 
 void KCMLookandFeel::setResetDefaultLayout(bool reset)
 {
     if (m_resetDefaultLayout == reset) {
         return;
     }
     m_resetDefaultLayout = reset;
     emit resetDefaultLayoutChanged();
     if (reset) {
         setNeedsSave(true);
     }
 }
 
 bool KCMLookandFeel::resetDefaultLayout() const
 {
     return m_resetDefaultLayout;
 }