Method getBackIcon

src/frontend/welcomescreen/WelcomeScreenHelper.cpp:404–414

* @brief Returns the go-back icon. */

 * @brief Returns the go-back icon.
 */
QVariant WelcomeScreenHelper::getBackIcon() {
	QIcon icon = QIcon::fromTheme("labplot-back");
	QPixmap pixmap = icon.pixmap(icon.availableSizes().constFirst());
	QByteArray bArray;
	QBuffer buffer(&bArray);
	buffer.open(QIODevice::WriteOnly);
	pixmap.save(&buffer, "PNG");
	QString image = QString::fromLatin1(bArray.toBase64().data());
	image.prepend("data:image/png;base64,");
	return QVariant(image);
}

/**
 * @brief Returns the go-forward icon.