ui->sendPushButton->setAutoFillBackground(true);
ui->sendPushButton->setStyleSheet("background-color: rgb(0, 0, 0); color: rgb(255, 255, 255)");
ui->newPushButton->setAutoFillBackground(true);
ui->newPushButton->setStyleSheet("background-color: rgb(0, 0, 0); color: rgb(255, 255, 255)");
ui->sendPushButton->setAutoFillBackground(true);
ui->sendPushButton->setStyleSheet("background-color: rgb(0, 0, 0); color: rgb(255, 255, 255)");
ui->newPushButton->setAutoFillBackground(true);
ui->newPushButton->setStyleSheet("background-color: rgb(0, 0, 0); color: rgb(255, 255, 255)");