diff --git a/mainwindow.ui b/mainwindow.ui
index 00e352e..6a21b4b 100644
--- a/mainwindow.ui
+++ b/mainwindow.ui
@@ -1416,7 +1416,7 @@ background:yellow;
               <widget class="QSlider" name="outAttenuation">
                <property name="minimumSize">
                 <size>
-                 <width>50</width>
+                 <width>60</width>
                  <height>0</height>
                 </size>
                </property>
@@ -1429,69 +1429,32 @@ background:yellow;
                 <string>Adjust Tx audio level</string>
                </property>
                <property name="styleSheet">
-                <string notr="true">QSlider::groove:vertical
-{
-border: 1px solid #bbb;
-background: white;
-width: 10px;
-border-radius: 2px;
+                <string notr="true">QSlider {
+selection-background-color: rgb(70, 70, 70);
 }
 
-QSlider::sub-page:vertical
-{
-background: QLinearGradient( x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #fff, stop: 0.4999 #eee, stop: 0.5 #ddd, stop: 1 #eee );
-border: 1px solid #777;
-width: 10px;
-border-radius: 2px;
-}
-
-QSlider::add-page:vertical {
-background: QLinearGradient( x1: 0, y1: 0, x2: 1, y2: 0, stop: 0 #78d, stop: 0.4999 #46a, stop: 0.5 #45a, stop: 1 #238 );
-
-border: 1px solid #777;
-border-radius: 2px;
-width: 10px;
+QSlider::groove:vertical{
+width:60px;
 }
 
 QSlider::handle:vertical {
-background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #eee, stop:1 #ccc);
-border: 1px solid #777;
-width: 20px;
-height:20px;
-margin-top: -1px;
-margin-bottom: -1px;
-margin-left:-5px;
-margin-right:-5px;
-border-radius: 2px;
+background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #fefefe, stop:1 #eee);
+border:1px solid #999;
+width:30px;
+height:30px;
+margin:-2px -8px;
+border-radius:2px;
 }
 
 QSlider::handle:vertical:hover {
-background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #fff, stop:1 #ddd);
-border: 1px solid #444;
-border-radius: 2px;
-}
-
-QSlider::sub-page:vertical:disabled {
-background: #bbb;
-border-color: #999;
-}
-
-QSlider::add-page:vertical:disabled {
-background: #eee;
-border-color: #999;
-}
-
-QSlider::handle:vertical:disabled {
-background: #eee;
-border: 1px solid #aaa;
-border-radius: 2px;
+background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #fff, stop:1 #fefefe);
 }</string>
                </property>
                <property name="maximum">
                 <number>450</number>
                </property>
                <property name="value">
-                <number>0</number>
+                <number>100</number>
                </property>
                <property name="orientation">
                 <enum>Qt::Vertical</enum>