diff --git a/src/core/main.cpp b/src/core/main.cpp
index 42279c22..099907ee 100644
--- a/src/core/main.cpp
+++ b/src/core/main.cpp
@@ -1,104 +1,108 @@
 /***************************************************************************
  *   Copyright (C) 2003-2005 by David Saxton                               *
  *   david@bluehaze.org                                                    *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  ***************************************************************************/
 
 #include "ktechlab.h"
 #include "diagnosticstyle.h"
 #include "logtofilemsghandler.h"
 
 //#include <dcopclient.h>
 #include <config.h>
 
 #include <KAboutData>
 #include <KLocalizedString>
 
 #include <QApplication>
 #include <QCommandLineParser>
 #include <QDir>
 
 
 int main(int argc, char **argv)
 {
+    // enable high dpi support
+    QCoreApplication::setAttribute(Qt::AA_UseHighDpiPixmaps, true);
+    QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
+
     LogToFileMsgHandler logFileHandler;
     QApplication app(argc, argv);
     KLocalizedString::setApplicationDomain("ktechlab");
 
     KAboutData about("ktechlab", i18n("KTechLab"),
                      VERSION, i18n("An IDE for microcontrollers and electronics"),
                      KAboutLicense::GPL_V2,
                      i18n("(C) 2003-2017, The KTechLab developers"),
                      "", "https://userbase.kde.org/KTechlab", "ktechlab-devel@kde.org" );
 	about.addAuthor( i18n("Alan Grimes"),
                      i18n("Developer, Simulation"),
                      "" );
 	about.addAuthor( i18n("Zoltan Padrah"),
                      i18n("Developer") ,
                      "zoltan_padrah@users.sourceforge.net");
     about.addAuthor( i18n("Julian Bäume"),
                      i18n("Developer, KDE4 Port, GUI"),
                      "julian@svg4all.de" );
     about.addAuthor( i18n("Juan De Vincenzo"),
                      i18n("KDE4 Port"),
                      "");
     about.addCredit( i18n("Lawrence Shafer"),
                      i18n("Website, wiki and forum"),
                      "");
 	about.addCredit( i18n("Jason Lucas"),
                      i18n("Keeping up the project during lack of developers"),
                      "" );
 	about.addCredit( i18n("David Saxton"),
                      i18n("Former developer, project founder, former maintainer"),
                      "david@bluehaze.org" );
 	about.addCredit( i18n("Daniel Clarke"),
                      i18n("Former developer"),
                      "daniel.jc@gmail.com" );
 	about.addCredit( i18n("Couriousous"),
                      i18n("JK flip-flop, asynchronous preset/reset in the D flip-flop"),
                      "" );
 	about.addCredit( i18n("John Myers"),
                      i18n("Rotary Switch"),
                      "" );
 	about.addCredit( i18n("Ali Akcaagac"),
                      i18n("Glib friendliness"),
                      "" );
 	about.addCredit( i18n("David Leggett"),
                      i18n("Former website hosting and feedback during early development"),
                      "" );
     KAboutData::setApplicationData(about);
     QApplication::setWindowIcon(QIcon::fromTheme(QStringLiteral("ktechlab")));
 
     QCommandLineParser parser;
     about.setupCommandLine(&parser);
     // 2019.10.03 - note: to add options to set icon and caption of the
     //              application's window? currently this is not implemented
     //              but it had references in the .destop file
     parser.addPositionalArgument(QStringLiteral("url"), i18n("Document to open."), QStringLiteral("[url]"));
 
     parser.process(app);
     about.processCommandLine(&parser);
 
     if (true) {  // TODO add a command line option for debugging the program's visual look
         //app.setStyle(new DiagnosticStyle());
     }
 
     // register ourselves as a dcop client
 	//app.dcopClient()->registerAs(app.name(), false);
 
 	KTechlab *ktechlab = new KTechlab();
 
     // 2019.10.03 - note: possibly add support for multiple URLs to be opened from
     //              command line?
     if (parser.positionalArguments().count() > 0) {
         const QUrl url = QUrl::fromUserInput(parser.positionalArguments().at(0), QDir::currentPath(), QUrl::AssumeLocalFile);
 		ktechlab->load( url );
     }
 
 	ktechlab->show();
 	return app.exec();
 }