Set background color of QMAP's MaxDrift control if its valus is > 0.

qmap/mainwindow.cpp

@@ -1114,3 +1114,13 @@ void MainWindow::on_actionAlso_Q65_30x_toggled(bool b)
   m_bAlso30=b;
 }
 
+
+void MainWindow::on_sbMaxDrift_valueChanged(int n)
+{
+  qDebug() << "aa";
+  if(n>0) {
+    ui->sbMaxDrift->setStyleSheet("QSpinBox { background-color: #ff6666; }");
+  } else {
+    ui->sbMaxDrift->setStyleSheet("");
+  }
+}

qmap/mainwindow.h

@@ -84,6 +84,8 @@ private slots:
   void on_actionQuick_Start_Guide_to_WSJT_X_2_7_and_QMAP_triggered();
   void on_actionAlso_Q65_30x_toggled(bool b);
 
+  void on_sbMaxDrift_valueChanged(int arg1);
+
 private:
   Ui::MainWindow *ui;
   QString m_appDir;