main.cpp

#include "mainwindow.h"

#include <QApplication>
#include <QStyleFactory>

void darkThema(){

    // dark thema
    qApp->setStyle(QStyleFactory::create("Fusion"));
    QPalette darkPalette;

    darkPalette.setColor(QPalette::Window, QColor(53, 53, 53));
    darkPalette.setColor(QPalette::WindowText, Qt::white);
    darkPalette.setColor(QPalette::Base, QColor(40, 40, 40));
    darkPalette.setColor(QPalette::AlternateBase, QColor(53, 53, 53));
    darkPalette.setColor(QPalette::ToolTipBase, Qt::white);
    darkPalette.setColor(QPalette::ToolTipText, Qt::white);
    darkPalette.setColor(QPalette::Text, Qt::white);
    darkPalette.setColor(QPalette::Button, QColor(75, 75, 75));
    darkPalette.setColor(QPalette::ButtonText, Qt::white);
    darkPalette.setColor(QPalette::BrightText, Qt::red);
    darkPalette.setColor(QPalette::Link, QColor(42, 130, 218));
    darkPalette.setColor(QPalette::Highlight, QColor(42, 130, 218));
    darkPalette.setColor(QPalette::HighlightedText, Qt::black);

    qApp->setPalette(darkPalette);

}

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    darkThema();
    MainWindow w;
    w.setWindowState(Qt::WindowMaximized);
    w.show();
    return a.exec();
}