md-toast.l-toast-green .md-toast-content {
    background-color: green;
    color: rgb(250,250,250);
}

md-toast.l-toast-red .md-toast-content {
    background-color: #d04735;
    color: rgb(250,250,250);
}

md-toast.l-toast-yellow .md-toast-content {
    background-color: #FEEFB3;
    color: #9F6000;
}