diff --git a/gps_tool/MainWindow.py b/gps_tool/MainWindow.py
index 66113b6..e65ae7f 100644
--- a/gps_tool/MainWindow.py
+++ b/gps_tool/MainWindow.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 
 ################################################################################
-## Form generated from reading UI file 'mainwindow.ui'
+## Form generated from reading UI file ''
 ##
 ## Created by: Qt User Interface Compiler version 5.15.2
 ##
@@ -129,6 +129,12 @@ class Ui_MainWindow(object):
         self.viewSatellites = QGraphicsView(self.centralwidget)
         self.viewSatellites.setObjectName(u"viewSatellites")
         self.viewSatellites.setGeometry(QRect(450, 10, 280, 280))
+        brush = QBrush(QColor(0, 0, 0, 255))
+        brush.setStyle(Qt.NoBrush)
+        self.viewSatellites.setBackgroundBrush(brush)
+        brush1 = QBrush(QColor(255, 255, 255, 255))
+        brush1.setStyle(Qt.NoBrush)
+        self.viewSatellites.setForegroundBrush(brush1)
         self.label_14 = QLabel(self.centralwidget)
         self.label_14.setObjectName(u"label_14")
         self.label_14.setGeometry(QRect(10, 10, 221, 16))
diff --git a/gps_tool/gps_tool.py b/gps_tool/gps_tool.py
index f76c14a..d848cd7 100755
--- a/gps_tool/gps_tool.py
+++ b/gps_tool/gps_tool.py
@@ -112,6 +112,7 @@ class QtGPSWindow(MainWindow):
     self.yellow = QColor(255,211,0)
     self.green = QColor(0,255,0)
     self.blue = QColor(0,0,255)
+    self.white = QColor(255,255,255)
         
     self.scene = QtWidgets.QGraphicsScene()
     self.viewSatellites.setScene(self.scene)
@@ -155,7 +156,8 @@ class QtGPSWindow(MainWindow):
       satellites = getattr(report, 'satellites')
 
       txt = "%4s %4s %4s %3s %1s" % ('PRN', 'Azim', 'Elev', 'SNR', 'Used')
-      self.txtSatellites.setTextColor(self.black)
+      self.txtSatellites.setStyleSheet("background-color: rgb(0, 0, 0)")
+      self.txtSatellites.setTextColor(self.white)
       self.txtSatellites.setFontWeight(QFont.Bold)
       self.txtSatellites.setText(txt)
       
@@ -226,6 +228,7 @@ class QtGPSWindow(MainWindow):
       polar.set_theta_zero_location('N', offset=0)
 
       canvas = FigureCanvas(figure)
+      self.scene.clear()
       self.scene.addWidget(canvas)
       h = float(self.scene.height()) / 2.0
       w = float(self.scene.width()) / 2.0
diff --git a/gps_tool/mainwindow.ui b/gps_tool/mainwindow.ui
index 7c07ece..c1742fb 100644
--- a/gps_tool/mainwindow.ui
+++ b/gps_tool/mainwindow.ui
@@ -442,6 +442,24 @@
       <height>280</height>
      </rect>
     </property>
+    <property name="backgroundBrush">
+     <brush brushstyle="NoBrush">
+      <color alpha="255">
+       <red>0</red>
+       <green>0</green>
+       <blue>0</blue>
+      </color>
+     </brush>
+    </property>
+    <property name="foregroundBrush">
+     <brush brushstyle="NoBrush">
+      <color alpha="255">
+       <red>255</red>
+       <green>255</green>
+       <blue>255</blue>
+      </color>
+     </brush>
+    </property>
    </widget>
    <widget class="QLabel" name="label_14">
     <property name="geometry">