diff --git a/customScrollContainer.cpp b/customScrollContainer.cpp
index 079609f..5650410 100644
--- a/customScrollContainer.cpp
+++ b/customScrollContainer.cpp
@@ -377,7 +377,11 @@ void ScrollIndicator::mousePressEvent(QMouseEvent *event){
     pressed = true;
     //>note: globalPos -> globalPosition here due to deprecation
     //>      may cause issues
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
     lastY = event->globalPosition().y();
+#else
+    lastY = event->globalPos().y();
+#endif
     update();
 }
 
@@ -385,11 +389,19 @@ void ScrollIndicator::mouseMoveEvent(QMouseEvent *event){
     if(pressed && !aniPause->isActive()){
         //>note: globalPos -> globalPosition here due to deprecation
         //>      may cause issues
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
         int dp = event->globalPosition().y() - lastY;
+#else
+        int dp = event->globalPos().y() - lastY;
+#endif
         emit scrollPage(dp);
         //>note: globalPos -> globalPosition here due to deprecation
         //>      may cause issues
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
         lastY = event->globalPosition().y();
+#else
+        lastY = event->globalPos().y();
+#endif
     }
 }
 
diff --git a/customScrollContainer.h b/customScrollContainer.h
index 2349021..49cd703 100644
--- a/customScrollContainer.h
+++ b/customScrollContainer.h
@@ -13,6 +13,7 @@
 #include <QMouseEvent>
 #include <QWheelEvent>
 #include <QTimer>
+#include <QtMath>
 
 #define MAXSPEED 70
 
diff --git a/graph_view.cpp b/graph_view.cpp
index 3ffd417..6b974af 100644
--- a/graph_view.cpp
+++ b/graph_view.cpp
@@ -1,5 +1,4 @@
 #include "graph_view.h"
-#include <QDebug>
 
 viewLog::viewLog(QString log, QWidget *parent) :
     QLabel(parent)
@@ -147,7 +146,11 @@ void MyGraphicsView::mouseMoveEvent(QMouseEvent *event){
 }
 
 void MyGraphicsView::wheelEvent(QWheelEvent *event){
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
     QPointF cursorPoint = event->position();
+#else
+    QPointF cursorPoint = event->posF();
+#endif
     QPointF scenePos = this->mapToScene(QPoint(cursorPoint.x(), cursorPoint.y()));
 
     qreal viewWidth = this->viewport()->width();
diff --git a/graph_view.h b/graph_view.h
index 23fe232..adf88ec 100644
--- a/graph_view.h
+++ b/graph_view.h
@@ -10,7 +10,6 @@
 #include <QFile>
 #include <QTextStream>
 #include <QScrollBar>
-
 #include <QLabel>
 
 //Header for MyVex class
@@ -25,6 +24,10 @@
 #include <QTimeLine>
 #include <QEasingCurve>
 
+#if (QT_VERSION < QT_VERSION_CHECK(6,0,0))
+#include <QtMath>
+#endif
+
 class viewLog : public QLabel{
     Q_OBJECT
 private:
diff --git a/main.cpp b/main.cpp
index cd83d19..fec4e8c 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,17 @@
 #include "mainwindow.h"
 
 #include <QApplication>
+#include <QDebug>
 
 int main(int argc, char *argv[])
 {
+    //int id = QFontDatabase::addApplicationFont(":/fonts/fonts/corbel.ttf");
+    //qDebug() << id;
+    //QFontDatabase::addApplicationFont(":/fonts/fonts/corbell.ttf");
+    //Qt::AA_EnableHighDpiScaling;
+#ifdef Q_OS_LINUX
+    QApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
+#endif
     QApplication a(argc, argv);
     MainWindow w;
     w.setWindowFlag(Qt::FramelessWindowHint);
diff --git a/mainwindow.cpp b/mainwindow.cpp
index 63ec6e8..e1bdf26 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -11,6 +11,10 @@ MainWindow::MainWindow(QWidget *parent)
 {
     ui->setupUi(this);
     ui->centralwidget->setMouseTracking(true);
+#ifdef Q_OS_LINUX
+    ui->verticalLayout->setContentsMargins(0, 0, 0, 0);
+    cornerRadius = 0;
+#endif
     QTimer *t = new QTimer(this);
     connect(t, &QTimer::timeout, this, [=](){Init();});
     t->setSingleShot(true);
@@ -21,8 +25,13 @@ MainWindow::MainWindow(QWidget *parent)
 
 void MainWindow::Init(){
     /* Create main widget and set mask, style sheet and shadow */
+#ifdef Q_OS_LINUX
+    QPainterPath path;
+    path.addRect(ui->mainWidget->rect());
+#else
     QPainterPath path;
     path.addRoundedRect(ui->mainWidget->rect(), cornerRadius - 1, cornerRadius - 1);
+#endif
     QRegion mask(path.toFillPolygon().toPolygon());
     ui->mainWidget->setMask(mask);
 
@@ -30,15 +39,19 @@ void MainWindow::Init(){
     ui->mainWidget->setObjectName("mainWidget");
     mainStyle = "QWidget#mainWidget{background-color:" + mainBackGround.name() + QString::asprintf(";border-radius:%dpx", cornerRadius) + "}";
     ui->mainWidget->setStyleSheet(mainStyle);
-
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+#ifdef Q_OS_WINDOWS
     windowShadow = new QGraphicsDropShadowEffect(this);
     windowShadow->setBlurRadius(30);
     windowShadow->setColor(QColor(0, 0, 0));
     windowShadow->setOffset(0, 0);
     ui->mainWidget->setGraphicsEffect(windowShadow);
+#endif
+#endif
     /**********************************************************/
 
     /* Create border in order to cover the zigzag edge of the region */
+#ifdef Q_OS_WINDOWS
     border = new QWidget(this);
     border->move(ui->mainWidget->pos() - QPoint(1, 1));
     border->resize(ui->mainWidget->size() + QSize(2, 2));
@@ -47,6 +60,7 @@ void MainWindow::Init(){
     border->setStyleSheet(borderStyle);
     border->setAttribute(Qt::WA_TransparentForMouseEvents);
     border->show();
+#endif
     /*****************************************************************/
 
     /* Create about page */
@@ -329,7 +343,11 @@ MainWindow::~MainWindow()
 void MainWindow::mousePressEvent(QMouseEvent *event){
     if(event->button() == Qt::LeftButton){
         mousePressed = true;
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
         lastPos = event->globalPosition().toPoint() - this->frameGeometry().topLeft();
+#else
+        lastPos = event->globalPos() - this->frameGeometry().topLeft();
+#endif
     }
 }
 
@@ -362,14 +380,26 @@ void MainWindow::mouseMoveEvent(QMouseEvent *event){
             if(maximized){
                 qreal wRatio = (double)event->pos().x() / (double)ui->mainWidget->width();
                 controlWindowScale();
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
                 this->move(QPoint(event->globalPosition().x() - ui->mainWidget->width() * wRatio, -30));
+#else
+                this->move(QPoint(event->globalPos().x() - ui->mainWidget->width() * wRatio, -30));
+#endif
                 lastPos = QPoint(ui->mainWidget->width() * wRatio, event->pos().y());
             }
             else
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
                 this->move(event->globalPosition().toPoint() - lastPos);
+#else
+                this->move(event->globalPos() - lastPos);
+#endif
         }
         else{
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
             QPoint d = event->globalPosition().toPoint() - frameGeometry().topLeft() - lastPos;
+#else
+            QPoint d = event->globalPos() - frameGeometry().topLeft() - lastPos;
+#endif
             if(mouseState & AT_LEFT){
                 this->move(this->frameGeometry().x() + d.x(), this->frameGeometry().y());
                 this->resize(this->width() - d.x(), this->height());
@@ -385,7 +415,11 @@ void MainWindow::mouseMoveEvent(QMouseEvent *event){
                 this->resize(this->width(), this->height() + d.y());
             }
         }
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
         lastPos = event->globalPosition().toPoint() - this->frameGeometry().topLeft();
+#else
+        lastPos = event->globalPos() - this->frameGeometry().topLeft();
+#endif
     }
 }
 
@@ -396,18 +430,23 @@ void MainWindow::resizeEvent(QResizeEvent *event){
 
     //Resize mask
     QPainterPath path;
+#ifdef Q_OS_WINDOWS
     path.addRoundedRect(ui->mainWidget->rect(), cornerRadius - 1, cornerRadius - 1);
+#else
+    path.addRect(ui->mainWidget->rect());
+#endif
     QRegion mask(path.toFillPolygon().toPolygon());
     ui->mainWidget->setMask(mask);
 
     //Resize all pages
     for(int i = 0; i < pageList.size(); i++){
-        pageList[i]->resize(ui->mainWidget->width() * 0.3 < pageList[i]->preferWidth ? pageList[i]->preferWidth - 1 : ui->mainWidget->width() * 0.3 - 1, ui->mainWidget->height());
+        pageList[i]->resize(ui->mainWidget->width() * 0.4 < pageList[i]->preferWidth ? pageList[i]->preferWidth - 1 : ui->mainWidget->width() * 0.4 - 1, ui->mainWidget->height());
         pageList[i]->resize(pageList[i]->width() + 1, pageList[i]->height());
     }
 }
 
 void MainWindow::controlWindowScale(){
+#ifdef Q_OS_WINDOWS
     if(!maximized){
         lastGeometry = this->frameGeometry();
         windowShadow->setEnabled(false);
@@ -437,6 +476,7 @@ void MainWindow::controlWindowScale(){
         this->move(lastGeometry.x(), lastGeometry.y());
         maximized = false;
     }
+#endif
 }
 
 MyCanvas* MainWindow::loadCanvas(const QString &path){
diff --git a/mainwindow.h b/mainwindow.h
index da435bc..8777c6f 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -48,7 +48,16 @@ private:
     QPoint lastPos;
     void mouseMoveEvent(QMouseEvent *event);
     void mousePressEvent(QMouseEvent *event);
-    void mouseReleaseEvent(QMouseEvent *event){mousePressed = false;if(event->globalPosition().y() < 2)  controlWindowScale();}
+    void mouseReleaseEvent(QMouseEvent *event){
+        mousePressed = false;
+#if (QT_VERSION >= QT_VERSION_CHECK(6,0,0))
+        if(event->globalPosition().y() < 2)
+            controlWindowScale();
+#else
+        if(event->globalPos().y() < 2)
+            controlWindowScale();
+#endif
+    }
     void resizeEvent(QResizeEvent *event);
 
     bool maximized = false;
diff --git a/slidepage.cpp b/slidepage.cpp
index 76fabf6..c722e2d 100644
--- a/slidepage.cpp
+++ b/slidepage.cpp
@@ -7,7 +7,7 @@ SlidePage::SlidePage(int radius, QString name, QWidget *parent) :
 {
     //if(parent)
     //    resize(parent->width() * 0.8 <= preferWidth ? parent->width() * 0.8 : preferWidth, parent->height());
-    resize(parent->width() * 0.3 <= preferWidth ? preferWidth : parent->width() * 0.3, parent->height());
+    resize(parent->width() * 0.4 <= preferWidth ? preferWidth : parent->width() * 0.4, parent->height());
     this->move(QPoint(-this->width() - 30, 0));
 
     pageContentContainer = new ScrollAreaCustom(this);