leonardoisrael20 If you want to customize the css of the payment buttons, there you have it
.btn.btn-lg.btn-make-payment-debito {
    background-color: rgb(61 173 253)!important;
    margin-top: 10px;
    width: 175px !important;
    color: rgb(255, 255, 255);
    border-radius: 25px;
}
.btn.btn-lg.btn-make-payment-credito {
    background-color: rgb(51, 217, 110);
    color: rgb(255, 255, 255);
    border-radius: 25px;
}
.btn.btn-lg.btn-make-payment-dinheiro {
        background-color: rgb(51, 217, 110);
    color: rgb(255, 255, 255);
    width: 165px;
    margin-top: 10px;
    border-radius: 25px;
}
.btn.btn-lg.btn-make-payment-dinheiro-troco {
    background-color: rgb(253, 65, 61);
    margin-top: 1rem;
    color: rgb(255, 255, 255);
    border-radius: 25px;
}