diff --git a/custom_widgets/yacreader_treeview.cpp b/custom_widgets/yacreader_treeview.cpp
index 32bdb3de..d11f4e8e 100644
--- a/custom_widgets/yacreader_treeview.cpp
+++ b/custom_widgets/yacreader_treeview.cpp
@@ -19,13 +19,52 @@ YACReaderTreeView::YACReaderTreeView(QWidget *parent) :
     setAttribute(Qt::WA_MacShowFocusRect,false);
 
 #ifdef Q_OS_MAC
+
+    bool oldStyle = false;
+    switch (QSysInfo::MacVersion())
+    {
+        case QSysInfo::MV_SNOWLEOPARD:
+        case QSysInfo::MV_LION:
+        case QSysInfo::MV_MOUNTAINLION:
+        case QSysInfo::MV_MAVERICKS:
+            oldStyle = true;
+            break;
+        default:
+            oldStyle = false;
+        break;
+    }
+
+    if(oldStyle)
+    {
     setStyleSheet("QTreeView {background-color:transparent; border: none;}"
                   "QTreeView::item:selected {background-color:qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6BAFE4, stop: 1 #3984D2); border-top: 2px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #5EA3DF, stop: 1 #73B8EA); border-left:none;border-right:none;border-bottom:1px solid #3577C2;}"
                   "QTreeView::branch:selected {background-color:qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6BAFE4, stop: 1 #3984D2); border-top: 2px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #5EA3DF, stop: 1 #73B8EA); border-left:none;border-right:none;border-bottom:1px solid #3577C2;}"
                   "QTreeView::branch:open:selected:has-children {image: url(':/images/expanded_branch_osx.png');}"
                   "QTreeView::branch:closed:selected:has-children {image: url(':/images/collapsed_branch_osx.png');}"
 
+                  "QScrollBar:vertical { border: none; background: #EFEFEF; width: 9px; margin: 0 3px 0 0; }"
+                  "QScrollBar::handle:vertical { background: #DDDDDD; width: 7px; min-height: 20px; margin: 1px; border: 1px solid #D0D0D0; }"
+                  "QScrollBar::add-line:vertical { border: none; background: #EFEFEF; height: 10px; subcontrol-position: bottom; subcontrol-origin: margin; margin: 0 3px 0 0;}"
+
+                  "QScrollBar::sub-line:vertical {  border: none; background: #EFEFEF; height: 10px; subcontrol-position: top; subcontrol-origin: margin; margin: 0 3px 0 0;}"
+                  "QScrollBar::up-arrow:vertical {border:none;width: 9px;height: 6px;background: url(':/images/folders_view/line-up.png') center top no-repeat;}"
+                  "QScrollBar::down-arrow:vertical {border:none;width: 9px;height: 6px;background: url(':/images/folders_view/line-down.png') center top no-repeat;}"
+
+                  "QScrollBar::add-page:vertical, QScrollBar::sub-page:vertical {background: none; }"
                   );
+    }
+    else
+    {
+        setStyleSheet("QTreeView {background-color:transparent; border: none;}"
+                      "QTreeView::item:selected {background-color:qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6BAFE4, stop: 1 #3984D2); border-top: 2px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #5EA3DF, stop: 1 #73B8EA); border-left:none;border-right:none;border-bottom:1px solid #3577C2;}"
+                      "QTreeView::branch:selected {background-color:qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #6BAFE4, stop: 1 #3984D2); border-top: 2px solid qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1, stop: 0 #5EA3DF, stop: 1 #73B8EA); border-left:none;border-right:none;border-bottom:1px solid #3577C2;}"
+                      "QTreeView::branch:open:selected:has-children {image: url(':/images/expanded_branch_osx.png');}"
+                      "QTreeView::branch:closed:selected:has-children {image: url(':/images/collapsed_branch_osx.png');}"
+
+                      );
+    }
+
+
 #else
     setStyleSheet("QTreeView {background-color:transparent; border: none; color:#DDDFDF; outline:0; show-decoration-selected: 0;}"
                   "QTreeView::item:selected {background-color: #2E2E2E; color:white; font:bold;}"