       return request->send( response );
     }
 
-    else if ( request->hasArg( "pwmfrequency" ) )
-    {
+    else if ( request->hasArg( "pwmfrequency" ) ) {
       double tempPWMfrequency = request->arg( "pwmfrequency" ).toFloat();
-      if ( tempPWMfrequency < 100 || tempPWMfrequency > LEDC_MAXIMUM_FREQ )
-      {
+      if ( tempPWMfrequency < 100 || tempPWMfrequency > LEDC_MAXIMUM_FREQ ) {
         return request->send( 400, HEADER_HTML, "Invalid PWM frequency" );;
       }
-      if ( tempPWMfrequency != ledcActualFrequency )
-      {
+      if ( tempPWMfrequency != ledcActualFrequency ) {
         setupDimmerPWMfrequency( tempPWMfrequency, ledcNumberOfBits );
         preferences.putDouble( "pwmfrequency", ledcActualFrequency );
       }

      static char timeStr[6];
      static time_t then, now;
      now = time(0);
      if ( then != now )
      {
        strftime( timeStr, sizeof( timeStr ),  "%H:%M", localtime( &now ) );
        then = now;
      }

  });

  //  /filemanager or 'fileman.htm'
  server.on( "/filemanager", HTTP_GET, [] ( AsyncWebServerRequest * request ) {
    if ( htmlUnmodified( request, date ) ) return request->send(304);
    AsyncWebServerResponse *response = request->beginResponse_P( 200, HEADER_HTML, fileman_htm, fileman_htm_len );
    response->addHeader( HEADER_LASTMODIFIED, date );
