diff --git a/src/Combinear.qss b/src/Combinear.css
similarity index 96%
rename from src/Combinear.qss
rename to src/Combinear.css
index 6b592e2..255c136 100644
--- a/src/Combinear.qss
+++ b/src/Combinear.css
@@ -19,6 +19,7 @@ QWidget#statusBar
 QToolButton
 { 
 	border-radius: 5px; margin:0px 0px 0px 0px; padding:3px;
+	background-color: #323232;
 }
 
 QToolButton::menu-button 
@@ -44,6 +45,11 @@ QToolButton:pressed
 	background-color:  #646464;
 }
 
+QToolButton:disabled
+{
+    background-color:  #222222;
+}
+
 /*-----QMenu-----*/
 QMenu {
     background-color: #f0f0f0;
diff --git a/src/QDicomViewer.qrc b/src/QDicomViewer.qrc
index e504779..395472b 100644
--- a/src/QDicomViewer.qrc
+++ b/src/QDicomViewer.qrc
@@ -11,7 +11,7 @@
         <file>Resources/import/setting.png</file>
     </qresource>
     <qresource prefix="/StyleSheet">
-        <file>Combinear.qss</file>
+        <file>Combinear.css</file>
     </qresource>
     <qresource prefix="/InfiniteViewer">
         <file>Icon/angle.png</file>
diff --git a/src/src/UI/Window/QDicomViewer.cpp b/src/src/UI/Window/QDicomViewer.cpp
index 8beb057..269032a 100644
--- a/src/src/UI/Window/QDicomViewer.cpp
+++ b/src/src/UI/Window/QDicomViewer.cpp
@@ -1,4 +1,4 @@
-#include "QDicomViewer.h"
+#include "QDicomViewer.h"
 
 #include <QFileDialog>
 #include <QDebug>
@@ -52,7 +52,7 @@ void QDicomViewer::Initial() {
 }
 
 void QDicomViewer::loadStyleSheet(const QString &sheetName) {
-    QFile file(":/StyleSheet/" + sheetName + ".qss");
+    QFile file(":/StyleSheet/" + sheetName + ".css");
     file.open(QFile::ReadOnly);
     if (file.isOpen()) {
         QString styleSheet = this->styleSheet();
diff --git a/src/src/UI/Window/QDicomViewer.h b/src/src/UI/Window/QDicomViewer.h
index f37f276..0b2923f 100644
--- a/src/src/UI/Window/QDicomViewer.h
+++ b/src/src/UI/Window/QDicomViewer.h
@@ -1,10 +1,12 @@
 #pragma once
 #include <QtWidgets/QMainWindow>
 #include "ui_QDicomViewer.h"
-#include "UI/Widget/importwidget.h"
+#include "UI/Widget/Import/importwidget.h"
 #include <QSettings>
 #include "UI/Dialog/exportdialog.h"
 #include "customwindow.h"
+#include "Common/Worker/WorkerManager.h"
+#include "UI/Manager/ImageViewStateCheckWorker.h"
 #include "UI/Widget/Measure/pqFontPropertyWidget.h"
 
 typedef tuple<const char *, const char *, int> ActionProperty;
@@ -106,6 +108,8 @@ private:
 	QIcon icon_auto;
 	QIcon icon_dis;
 	QToolButton* syncBtn = nullptr;
+	QToolButton* fusionBtn = nullptr;
+	QToolButton* mprBtn = nullptr;
 	QAction *m_sync_item_action[SYNC_ITEM_NUM];
 	QAction* m_sync_state_action;
 	QAction* m_measure_hidden_action;
@@ -124,6 +128,9 @@ private:
 	
 	AnnotationActorType m_cur_measure = AnnotationActorType::RulerAnn;
 
+    WorkerManager workerManager;
+    ImageViewStateCheckWorker worker;
+
     void syncStateChanged() const;
     void switchSyncState();