QtCurvesCpp/mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QPainter>

MainWindow::MainWindow(QWidget *parent) :
	QMainWindow(parent),
	ui(new Ui::MainWindow)
{
	ui->setupUi(this);
}

MainWindow::~MainWindow()
{
	delete ui;
}

void MainWindow::paintEvent(QPaintEvent* event)
{
	QPainter painter{this};
	painter.setBrush(QColor{26,25,25});
}