Fixed graphics color

gps_tool/gps_tool.py

@@ -188,10 +188,10 @@ class QtGPSWindow(MainWindow):
           cname = '#ffd300'
           color = self.yellow
         elif snr < 42:
-          color = '#00ff00'
+          cname = '#00ff00'
           color = self.green
         else:
-          color = '#0000ff'
+          cname = '#0000ff'
           color = self.blue
         
         txt = "%4u %4u %4u %3u %1u" % (prn, azim, elev, snr, used)
@@ -289,8 +289,8 @@ class QtGPSWindow(MainWindow):
 if os.path.isfile('config.yaml'):
   with open('config.yaml') as f:
     config = yaml.load(f, Loader=yaml.FullLoader)
-    if 'host' in config:
-      gpsd_host = config['host']
+    if 'gpsd_host' in config:
+      gpsd_host = config['gpsd_host']
 
 if __name__ == '__main__':
   app = QApplication(sys.argv)