diff --git a/libchinese-segmentation/chinese-segmentation.cpp b/libchinese-segmentation/chinese-segmentation.cpp
index 095d6a7..ea80a67 100644
--- a/libchinese-segmentation/chinese-segmentation.cpp
+++ b/libchinese-segmentation/chinese-segmentation.cpp
@@ -65,7 +65,7 @@ QVector<SKeyWord> ChineseSegmentation::callSegement(QString str) {
     convert(keywordres, vecNeeds);
 
     keywordres.clear();
-    keywordres.shrink_to_fit();
+//    keywordres.shrink_to_fit();
 
 
     return vecNeeds;
diff --git a/libsearch/global-settings.cpp b/libsearch/global-settings.cpp
index 36d3ba6..838ac79 100644
--- a/libsearch/global-settings.cpp
+++ b/libsearch/global-settings.cpp
@@ -19,7 +19,6 @@
  *
  */
 #include <QtConcurrent>
-#include <QApplication>
 #include <QPalette>
 #include "global-settings.h"
 
@@ -83,6 +82,8 @@ GlobalSettings::GlobalSettings(QObject *parent) : QObject(parent) {
                 qApp->paletteChanged(qApp->palette());
                 m_cache.remove(FONT_SIZE_KEY);
                 m_cache.insert(FONT_SIZE_KEY, m_theme_gsettings->get(FONT_SIZE_KEY).toDouble());
+            } else if (key == ICON_THEME_KEY) {
+                qApp->paletteChanged(qApp->palette());
             }
         });
         m_cache.remove(STYLE_NAME_KEY);
diff --git a/libsearch/global-settings.h b/libsearch/global-settings.h
index 7815eb2..3de9ded 100644
--- a/libsearch/global-settings.h
+++ b/libsearch/global-settings.h
@@ -33,6 +33,7 @@
 #include <QGSettings/QGSettings>
 #include <QDBusConnection>
 #include <QDBusInterface>
+#include <QApplication>
 #include "libsearch_global.h"
 
 #define CONTROL_CENTER_PERSONALISE_GSETTINGS_ID "org.ukui.control-center.personalise"
@@ -40,6 +41,7 @@
 #define THEME_GSETTINGS_ID "org.ukui.style"
 #define STYLE_NAME_KEY "styleName"
 #define FONT_SIZE_KEY "systemFontSize"
+#define ICON_THEME_KEY "iconThemeName"
 
 #define ENABLE_CREATE_INDEX_ASK_DIALOG "enable_create_index_ask_dialog"
 #define WEB_ENGINE "web_engine"
diff --git a/libsearch/plugininterface/search-plugin-iface.h b/libsearch/plugininterface/search-plugin-iface.h
index d4ccdb9..a2cb769 100644
--- a/libsearch/plugininterface/search-plugin-iface.h
+++ b/libsearch/plugininterface/search-plugin-iface.h
@@ -11,19 +11,24 @@ namespace Zeeker {
 class SearchPluginIface : public PluginInterface
 {
 public:
+    struct DescriptionInfo
+    {
+        QString key;
+        QString value;
+    };
     /**
-     * @brief The resultInfo struct
+     * @brief The ResultInfo struct
      */
-    struct resultInfo
+    struct ResultInfo
     {
         QIcon icon;
         QString name;
-        QString description;
+        QVector<DescriptionInfo> description;
         QMap<QString,QString> actionMap;//action name and action key
     };
     virtual ~SearchPluginIface() {}
     virtual QString getPluginName() = 0;
-    virtual void KeywordSearch(QString keyword,QQueue<resultInfo> *searchResult) = 0;
+    virtual void KeywordSearch(QString keyword,QQueue<ResultInfo> *searchResult) = 0;
     virtual void openAction(QString name, QString key) = 0;
 
 };
diff --git a/src/content-widget.cpp b/src/content-widget.cpp
index 7d9f335..532c6c6 100644
--- a/src/content-widget.cpp
+++ b/src/content-widget.cpp
@@ -22,7 +22,6 @@
 #include <QDebug>
 #include <QLabel>
 #include <QTimer>
-#include <QApplication>
 #include "config-file.h"
 
 using namespace Zeeker;
diff --git a/src/control/highlight-item-delegate.cpp b/src/control/highlight-item-delegate.cpp
index a11d3c3..c57e1e3 100644
--- a/src/control/highlight-item-delegate.cpp
+++ b/src/control/highlight-item-delegate.cpp
@@ -20,12 +20,10 @@
  */
 #include "highlight-item-delegate.h"
 #include <QPainter>
-#include <QApplication>
 #include <QStyle>
 #include <QDebug>
 #include <QTextDocument>
 #include <QAbstractTextDocumentLayout>
-#include "global-settings.h"
 
 using namespace Zeeker;
 HighlightItemDelegate::HighlightItemDelegate(QObject *parent) : QStyledItemDelegate(parent) {
diff --git a/src/control/highlight-item-delegate.h b/src/control/highlight-item-delegate.h
index 81a0527..cc71b72 100644
--- a/src/control/highlight-item-delegate.h
+++ b/src/control/highlight-item-delegate.h
@@ -22,6 +22,7 @@
 #define HIGHLIGHTITEMDELEGATE_H
 
 #include <QStyledItemDelegate>
+#include "global-settings.h"
 
 namespace Zeeker {
 class HighlightItemDelegate : public QStyledItemDelegate {
diff --git a/src/control/home-page-item.cpp b/src/control/home-page-item.cpp
index 5177a6d..5fe596d 100644
--- a/src/control/home-page-item.cpp
+++ b/src/control/home-page-item.cpp
@@ -26,7 +26,6 @@
 #include <QPainter>
 #include <QDesktopServices>
 #include <QUrl>
-#include <QApplication>
 
 using namespace Zeeker;
 HomePageItem::HomePageItem(QWidget *parent, const int& type, const QString& path) : QWidget(parent) {
diff --git a/src/control/search-detail-view.cpp b/src/control/search-detail-view.cpp
index 6f16695..319cbeb 100644
--- a/src/control/search-detail-view.cpp
+++ b/src/control/search-detail-view.cpp
@@ -30,7 +30,6 @@
 #include <QFileInfo>
 #include <QProcess>
 #include <QClipboard>
-#include <QApplication>
 #include <QFileInfo>
 #include <QDateTime>
 #include <QDBusMetaType>
@@ -40,6 +39,7 @@
 using namespace Zeeker;
 SearchDetailView::SearchDetailView(QWidget *parent) : QWidget(parent) {
     initUI();
+    connect(qApp, &QApplication::paletteChanged, this, &SearchDetailView::refreshIcon);
 }
 
 SearchDetailView::~SearchDetailView() {
@@ -200,9 +200,7 @@ void SearchDetailView::setAppWidget(const QString &appname, const QString &path,
     m_typeLabel->show();
     m_hLine->show();
 
-    QIcon icon;
     if(path.isEmpty() || path == "") {
-        icon = QIcon(iconpath);
         m_optionView->setupOptions(m_type, false);
         //未安装应用有一个label显示软件描述
         if(description != "" && !description.isEmpty()) {
@@ -210,17 +208,13 @@ void SearchDetailView::setAppWidget(const QString &appname, const QString &path,
             m_contentLabel->show();
             m_contentLabel->setText(QString(tr("Introduction: %1")).arg(description));
         }
+        setIcon(iconpath, false);
     } else {
         m_optionView->setupOptions(m_type, true);
-        if(QIcon::fromTheme(iconpath).isNull()) {
-            icon = QIcon(":/res/icons/desktop.png");
-        } else {
-            icon = QIcon::fromTheme(iconpath);
-        }
+        setIcon(iconpath, true);
     }
     m_optionView->show();
 
-    m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
     QFontMetrics fontMetrics = m_nameLabel->fontMetrics();
     QString showname = fontMetrics.elidedText(m_name, Qt::ElideRight, 274); //当字体长度超过215时显示为省略号
     m_nameLabel->setText(showname);
@@ -352,8 +346,7 @@ void SearchDetailView::setupWidget(const int& type, const QString& path) {
     case SearchListView::ResType::Content:
     case SearchListView::ResType::Dir :
     case SearchListView::ResType::File : {
-        QIcon icon = FileUtils::getFileIcon(QUrl::fromLocalFile(path).toString());
-        m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
+        setIcon(path);
         QFontMetrics fontMetrics = m_nameLabel->fontMetrics();
         QString wholeName = FileUtils::getFileName(path);
         QString name = fontMetrics.elidedText(wholeName, Qt::ElideRight, 274);
@@ -366,8 +359,7 @@ void SearchDetailView::setupWidget(const int& type, const QString& path) {
         break;
     }
     case SearchListView::ResType::Setting : {
-        QIcon icon = FileUtils::getSettingIcon(path, true);
-        m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
+        setIcon(path);
         QString settingType = path.mid(path.indexOf("/") + 1, path.lastIndexOf("/") - path.indexOf("/") - 1); //配置项所属控制面板插件名
         m_nameLabel->setText(settingType);
         m_typeLabel->setText(FileUtils::getSettingName(path));
@@ -567,6 +559,42 @@ void SearchDetailView::initUI() {
     this->clearLayout(); //初始化时隐藏所有控件
 }
 
+/**
+ * @brief SearchDetailView::refreshIcon 图标主题变更时，刷新图标的槽函数
+ */
+void SearchDetailView::refreshIcon() {
+    this->setIcon(m_iconPath);
+}
+
+/**
+ * @brief SearchDetailView::setIcon 设置图标区域
+ * @param path 图标路径或图标名
+ * @param installed 如果是应用，是否已安装
+ */
+void SearchDetailView::setIcon(const QString &path, const bool &installed)
+{
+    m_iconPath = path;
+    if (m_type == SearchListView::ResType::App) {
+        QIcon icon;
+        if(!installed) {
+            icon = QIcon(path);
+        } else {
+            if(QIcon::fromTheme(path).isNull()) {
+                icon = QIcon(":/res/icons/desktop.png");
+            } else {
+                icon = QIcon::fromTheme(path);
+            }
+        }
+        m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
+    } else if (m_type == SearchListView::ResType::Setting) {
+        QIcon icon = FileUtils::getSettingIcon(path, true);
+        m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
+    } else {
+        QIcon icon = FileUtils::getFileIcon(QUrl::fromLocalFile(path).toString());
+        m_iconLabel->setPixmap(icon.pixmap(icon.actualSize(QSize(96, 96))));
+    }
+}
+
 /**
  * @brief SearchDetailView::addDesktopShortcut 添加到桌面快捷方式
  * @return
diff --git a/src/control/search-detail-view.h b/src/control/search-detail-view.h
index 96551da..a06cf87 100644
--- a/src/control/search-detail-view.h
+++ b/src/control/search-detail-view.h
@@ -71,6 +71,8 @@ private:
     QString m_pkgname = 0; //目前只有未安装应用在打开软件商店时需要此参数
 
     void initUI();
+    void setIcon(const QString& path, const bool &installed = true);
+    QString m_iconPath;
     QLabel * m_iconLabel = nullptr;
     QFrame * m_nameFrame = nullptr;
     QHBoxLayout * m_nameLayout = nullptr;
@@ -105,6 +107,7 @@ Q_SIGNALS:
     void configFileChanged();
 private Q_SLOTS:
     void execActions(const int&, const int&, const QString&);
+    void refreshIcon();
 };
 
 //此类用于url拦截
diff --git a/src/control/search-list-view.cpp b/src/control/search-list-view.cpp
index 2cbb308..e4611e7 100644
--- a/src/control/search-list-view.cpp
+++ b/src/control/search-list-view.cpp
@@ -128,7 +128,13 @@ void SearchListView::clear() {
  */
 void SearchListView::refresh()
 {
+    QModelIndex index = this->currentIndex();
     m_model->refresh();
+    if(index.row() >= 0 && index.row() < m_model->length() && m_isSelected) {
+        this->blockSignals(true);
+        this->setCurrentIndex(index);
+        this->blockSignals(false);
+    }
     rowheight = this->rowHeight(this->model()->index(0, 0, QModelIndex())) + 1;
     this->setFixedHeight(m_item->getCurrentSize() * rowheight + 4);
 }
diff --git a/src/create-index-ask-dialog.cpp b/src/create-index-ask-dialog.cpp
index 1fc2e76..0d1fc1e 100644
--- a/src/create-index-ask-dialog.cpp
+++ b/src/create-index-ask-dialog.cpp
@@ -20,11 +20,10 @@
  */
 
 #include "create-index-ask-dialog.h"
-#include <QPainter>
 
 using namespace Zeeker;
 CreateIndexAskDialog::CreateIndexAskDialog(QWidget *parent) : QDialog(parent) {
-    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
+//    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
     this->setWindowTitle(tr("ukui-search"));
 
     initUi();
@@ -46,6 +45,10 @@ void CreateIndexAskDialog::initUi() {
     m_iconLabel = new QLabel(m_titleFrame);
     m_iconLabel->setFixedSize(24, 24);
     m_iconLabel->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    //主题改变时，更新自定义标题栏的图标
+    connect(qApp, &QApplication::paletteChanged, this, [ = ]() {
+        m_iconLabel->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    });
     m_titleLabel = new QLabel(m_titleFrame);
     m_titleLabel->setText(tr("Search"));
     m_closeBtn = new QPushButton(m_titleFrame);
@@ -113,6 +116,10 @@ void CreateIndexAskDialog::initUi() {
     m_contentLyt->addWidget(m_btnFrame);
 
     m_mainLyt->addWidget(m_contentFrame);
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+    m_titleFrame->hide();
+    this->setFixedSize(380, 162);
+#endif
 }
 
 /**
diff --git a/src/create-index-ask-dialog.h b/src/create-index-ask-dialog.h
index bf360fc..4719181 100644
--- a/src/create-index-ask-dialog.h
+++ b/src/create-index-ask-dialog.h
@@ -30,6 +30,8 @@
 #include <QLabel>
 #include <QPushButton>
 #include <QStyleOption>
+#include <QApplication>
+#include <QPainter>
 
 namespace Zeeker {
 class CreateIndexAskDialog : public QDialog {
diff --git a/src/main.cpp b/src/main.cpp
index cca0d2a..54dbe8b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -29,8 +29,11 @@
 #include <QLocale>
 #include <X11/Xlib.h>
 #include <syslog.h>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
 #include <ukui-log4qt.h>
+#endif
 #include <QObject>
+#include <QApplication>
 #include "qt-single-application.h"
 #include "qt-local-peer.h"
 //#include "inotify-manager.h"
@@ -144,8 +147,11 @@ void searchMethod(FileUtils::SearchMethod sm){
 }
 */
 int main(int argc, char *argv[]) {
-    //Init log module
+//v101日志模块
+//#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
+//    //Init log module
 //    initUkuiLog4qt("ukui-search");
+//#endif
 
     // Determine whether the home directory has been created, and if not, keep waiting.
     char *p_home = NULL;
@@ -171,6 +177,11 @@ int main(int argc, char *argv[]) {
 
     // Output log to file
     qInstallMessageHandler(messageOutput);
+//若使用v101日志模块，可以解放如下判断条件
+//#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+//    // Output log to file
+//    qInstallMessageHandler(messageOutput);
+//#endif
 
     // Register meta type
     qDebug() << "ukui-search main start";
@@ -268,6 +279,7 @@ int main(int argc, char *argv[]) {
 
     //set main window to the center of screen
     MainWindow *w = new MainWindow;
+    qApp->setWindowIcon(QIcon::fromTheme("kylin-search"));
 //    centerToScreen(w);
 //    w->moveToPanel();
     centerToScreen(w);
@@ -289,7 +301,9 @@ int main(int argc, char *argv[]) {
     if(QString::compare(QString("-s"), QString(QLatin1String(argv[1]))) == 0) {
 //        w->moveToPanel();
         centerToScreen(w);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
         XAtomHelper::getInstance()->setWindowMotifHint(w->winId(), w->m_hints);
+#endif
         w->show();
     }
 
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index bca3a05..4cd016c 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -29,9 +29,11 @@
 #include <QPalette>
 #include <QScreen>
 #include <QStyleOption>
-#include <KWindowEffects>
 #include <QPixmap>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
+#include <KWindowEffects>
 #include "kwindowsystem.h"
+#endif
 #include "qt-single-application.h"
 
 //#include "inotify-manager.h"
@@ -58,7 +60,7 @@ MainWindow::MainWindow(QWidget *parent) :
 
 //    this->setWindowFlags(Qt::CustomizeWindowHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);
 //    this->setWindowFlags(Qt::CustomizeWindowHint | Qt::FramelessWindowHint);
-    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
+//    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
     this->setAttribute(Qt::WA_TranslucentBackground, true);
     this->setAutoFillBackground(false);
     this->setFocusPolicy(Qt::StrongFocus);
@@ -67,6 +69,7 @@ MainWindow::MainWindow(QWidget *parent) :
     initUi();
     initTimer();
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
 //    setProperty("useStyleWindowManager", false); //禁止拖动
     m_hints.flags = MWM_HINTS_FUNCTIONS | MWM_HINTS_DECORATIONS;
     m_hints.functions = MWM_FUNC_ALL;
@@ -80,6 +83,7 @@ MainWindow::MainWindow(QWidget *parent) :
     path.addRect(rect);
     setProperty("blurRegion", QRegion(path.toFillPolygon().toPolygon()));
     KWindowEffects::enableBlurBehind(this->winId(), true, QRegion(path.toFillPolygon().toPolygon()));
+#endif
 
     connect(qApp, &QApplication::paletteChanged, this, [ = ](const QPalette & pal) {
         this->setPalette(pal);
@@ -125,7 +129,9 @@ MainWindow::MainWindow(QWidget *parent) :
                 clearSearchResult();
 //                this->moveToPanel();
                 centerToScreen(this);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
                 XAtomHelper::getInstance()->setWindowMotifHint(winId(), m_hints);
+#endif
                 this->show();
                 this->m_searchLayout->focusIn(); //打开主界面时输入框夺焦，可直接输入
                 this->raise();
@@ -150,10 +156,12 @@ MainWindow::~MainWindow() {
         delete m_searchLayout;
         m_searchLayout = NULL;
     }
-//    if(m_settingsWidget) {
-//        delete m_settingsWidget;
-//        m_settingsWidget = NULL;
-//    }
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+    if(m_settingsWidget) {
+        delete m_settingsWidget;
+        m_settingsWidget = NULL;
+    }
+#endif
     if(m_askDialog) {
         delete m_askDialog;
         m_askDialog = NULL;
@@ -189,6 +197,10 @@ void MainWindow::initUi() {
     m_iconLabel = new QLabel(m_titleFrame);
     m_iconLabel->setFixedSize(24, 24);
     m_iconLabel->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    //主题改变时，更新自定义标题栏的图标
+    connect(qApp, &QApplication::paletteChanged, this, [ = ]() {
+        m_iconLabel->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    });
     m_titleLabel = new QLabel(m_titleFrame);
     m_titleLabel->setText(tr("Search"));
     m_menuBtn = new QPushButton(m_titleFrame);
@@ -199,38 +211,42 @@ void MainWindow::initUi() {
     m_menuBtn->setProperty("isWindowButton", 0x01);
     m_menuBtn->setFlat(true);
     connect(m_menuBtn, &QPushButton::clicked, this, [ = ]() {
-//        if(m_settingsWidget) {  //当此窗口已存在时，仅需置顶
-//            if(!m_settingsWidget->isVisible()) {
-//                centerToScreen(m_settingsWidget);
-//            }
-//            m_settingsWidget->showWidget();
-//            return;
-//        }
-//        m_settingsWidget = new SettingsWidget();
-//        connect(this, &MainWindow::webEngineChanged, m_settingsWidget, [ = ]() {
-//            m_settingsWidget->resetWebEngine();
-//        });
-//        connect(m_settingsWidget, &SettingsWidget::webEngineChanged, this, [ = ](const QString & engine) {
-//            if(m_search_gsettings && m_search_gsettings->keys().contains(WEB_ENGINE_KEY)) {
-//                m_search_gsettings->set(WEB_ENGINE_KEY, engine);
-//            } else {
-//                GlobalSettings::getInstance()->setValue(WEB_ENGINE, engine);
-//            }
-//        });
-//        centerToScreen(m_settingsWidget);
-//        m_settingsWidget->show();
-//        connect(m_settingsWidget, &SettingsWidget::settingWidgetClosed, this, [ = ]() {
-//            QTimer::singleShot(100, this, [ = ] {
-////                clearSearchResult(); //现暂定从设置页返回主页面不清空搜索结果
-//                this->setWindowState(this->windowState() & ~Qt::WindowMinimized);
-//                this->raise();
-//                this->showNormal();
-//                this->activateWindow();
-//            });
-//        });
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+        if(m_settingsWidget) {  //当此窗口已存在时，仅需置顶
+            if(!m_settingsWidget->isVisible()) {
+                centerToScreen(m_settingsWidget);
+            }
+            m_settingsWidget->showWidget();
+            return;
+        }
+        m_settingsWidget = new SettingsWidget();
+        connect(this, &MainWindow::webEngineChanged, m_settingsWidget, [ = ]() {
+            m_settingsWidget->resetWebEngine();
+        });
+        connect(m_settingsWidget, &SettingsWidget::webEngineChanged, this, [ = ](const QString & engine) {
+            if(m_search_gsettings && m_search_gsettings->keys().contains(WEB_ENGINE_KEY)) {
+                m_search_gsettings->set(WEB_ENGINE_KEY, engine);
+            } else {
+                GlobalSettings::getInstance()->setValue(WEB_ENGINE, engine);
+            }
+        });
+        centerToScreen(m_settingsWidget);
+        m_settingsWidget->show();
+        connect(m_settingsWidget, &SettingsWidget::settingWidgetClosed, this, [ = ]() {
+            QTimer::singleShot(100, this, [ = ] {
+//                clearSearchResult(); //现暂定从设置页返回主页面不清空搜索结果
+                this->setWindowState(this->windowState() & ~Qt::WindowMinimized);
+                this->raise();
+                this->showNormal();
+                this->activateWindow();
+            });
+        });
+#endif
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
         //打开控制面板的设置页
         QProcess process;
         process.startDetached("ukui-control-center --search");
+#endif
     });
     m_titleLyt->addWidget(m_iconLabel);
     m_titleLyt->addWidget(m_titleLabel);
@@ -286,11 +302,13 @@ void MainWindow::initUi() {
 
     //创建索引询问弹窗
     m_askDialog = new CreateIndexAskDialog(this);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
     MotifWmHints ask_dialog_hints;
     ask_dialog_hints.flags = MWM_HINTS_FUNCTIONS | MWM_HINTS_DECORATIONS;
     ask_dialog_hints.functions = MWM_FUNC_ALL;
     ask_dialog_hints.decorations = MWM_DECOR_BORDER;
     XAtomHelper::getInstance()->setWindowMotifHint(m_askDialog->winId(), ask_dialog_hints);
+#endif
     connect(m_askDialog, &CreateIndexAskDialog::closed, this, [ = ]() {
         m_isAskDialogVisible = false;
     });
@@ -323,7 +341,9 @@ void MainWindow::bootOptionsFilter(QString opt) {
         clearSearchResult();
 //        this->moveToPanel();
         centerToScreen(this);
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
         XAtomHelper::getInstance()->setWindowMotifHint(winId(), m_hints);
+#endif
         this->show();
         this->m_searchLayout->focusIn();
         this->raise();
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 8de33fe..7a5a153 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -49,10 +49,14 @@
 #include "content-widget.h"
 #include "input-box.h"
 #include "index/index-generator.h"
-//#include "settings-widget.h"
 #include "libsearch.h"
 #include "search-app-thread.h"
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
 #include "xatom-helper.h"
+#endif
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+#include "settings-widget.h"
+#endif
 #include "create-index-ask-dialog.h"
 
 #define UKUI_SEARCH_SCHEMAS "org.ukui.search.settings"
@@ -82,7 +86,9 @@ public:
     void centerToScreen(QWidget* widget);
     void initGsettings();
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
     MotifWmHints m_hints;
+#endif
 
 private:
 
@@ -95,7 +101,9 @@ private:
     QLabel * m_iconLabel = nullptr;              // Icon lable
     QLabel * m_titleLabel = nullptr;             // Title lable
     QPushButton * m_menuBtn = nullptr;           // Menu button
-//    SettingsWidget * m_settingsWidget = nullptr; // Settings Widget
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+    SettingsWidget * m_settingsWidget = nullptr; // Settings Widget
+#endif
     ContentWidget * m_contentFrame = nullptr;    // Content frame
     SearchBarHLayout * m_searchLayout = nullptr; // Search bar layout
     SeachBarWidget * m_searchWidget = nullptr;   // Search bar
diff --git a/src/model/search-item-model.cpp b/src/model/search-item-model.cpp
index 264fe74..66e2cee 100644
--- a/src/model/search-item-model.cpp
+++ b/src/model/search-item-model.cpp
@@ -186,3 +186,8 @@ void SearchItemModel::refresh()
     this->beginResetModel();
     this->endResetModel();
 }
+
+int SearchItemModel::length()
+{
+    return m_item->m_pathlist.length();
+}
diff --git a/src/model/search-item-model.h b/src/model/search-item-model.h
index 8104566..396c77e 100644
--- a/src/model/search-item-model.h
+++ b/src/model/search-item-model.h
@@ -60,6 +60,7 @@ public:
     void clear();
     void setBestAppIcon(const QString &, const bool &);
     void refresh();
+    int length();
 
 private :
     SearchItem * m_item = nullptr;
diff --git a/src/settings-widget.cpp b/src/settings-widget.cpp
index b9b47f8..afca905 100644
--- a/src/settings-widget.cpp
+++ b/src/settings-widget.cpp
@@ -32,15 +32,17 @@
 using namespace Zeeker;
 extern void qt_blurImage(QImage &blurImage, qreal radius, bool quality, int transposed);
 SettingsWidget::SettingsWidget(QWidget *parent) : QWidget(parent) {
-    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
+//    this->setWindowIcon(QIcon::fromTheme("kylin-search"));
     this->setWindowTitle(tr("ukui-search-settings"));
 //    this->setWindowFlags(Qt::CustomizeWindowHint | Qt::FramelessWindowHint);
 //    this->setAttribute(Qt::WA_TranslucentBackground);
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
     m_hints.flags = MWM_HINTS_FUNCTIONS | MWM_HINTS_DECORATIONS;
     m_hints.functions = MWM_FUNC_ALL;
     m_hints.decorations = MWM_DECOR_BORDER;
     XAtomHelper::getInstance()->setWindowMotifHint(winId(), m_hints);
+#endif
 
     initUi();
     refreshIndexState();
@@ -70,6 +72,10 @@ void SettingsWidget::initUi() {
     m_titleFrame->setLayout(m_titleLyt);
     m_titleIcon = new QLabel(m_titleFrame);
     m_titleIcon->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    //主题改变时，更新自定义标题栏的图标
+    connect(qApp, &QApplication::paletteChanged, this, [ = ]() {
+        m_titleIcon->setPixmap(QIcon::fromTheme("kylin-search").pixmap(QSize(24, 24)));
+    });
     m_titleLabel = new QLabel(m_titleFrame);
     m_titleLabel->setText(tr("Search"));
     m_closeBtn = new QPushButton(m_titleFrame);
@@ -220,6 +226,11 @@ void SettingsWidget::initUi() {
 //    m_mainLyt->addWidget(m_bottomBtnFrame);
 
     m_contentLyt->addStretch();
+
+#if (QT_VERSION < QT_VERSION_CHECK(5, 12, 0))
+    this->m_titleFrame->hide();
+    setAttribute(Qt::WA_DeleteOnClose);
+#endif
 }
 
 /**
@@ -370,7 +381,9 @@ void SettingsWidget::showWidget() {
     flags &= ~Qt::WindowStaysOnTopHint;
     this->setWindowFlags(flags);
     m_timer->start();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
     XAtomHelper::getInstance()->setWindowMotifHint(winId(), m_hints);
+#endif
     this->show();
 }
 
diff --git a/src/settings-widget.h b/src/settings-widget.h
index 56143ed..421a099 100644
--- a/src/settings-widget.h
+++ b/src/settings-widget.h
@@ -33,7 +33,9 @@
 #include <QScrollArea>
 #include <QTimer>
 #include <libsearch.h>
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
 #include "xatom-helper.h"
+#endif
 
 namespace Zeeker {
 class SettingsWidget : public QWidget {
@@ -56,7 +58,9 @@ private:
     void resize();
     void showWarningDialog(const int&);
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 12, 0))
     MotifWmHints m_hints;
+#endif
 
     //标题栏
     QVBoxLayout * m_mainLyt = nullptr;