void MainWindow::on_actionFusionLight_triggered()
{
    changeTheme("light");
    Settings.setTheme("light");
    ui->mainToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
}
void MainWindow::on_actionFusionLight_triggered()
{
    changeTheme("light");
    Settings.setTheme("light");
    ui->mainToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
}