@cdanielgallegos The module does not have a stylesheet and runs off the main.css. You could set the following in the custom.css but it will change the color for all the rows as they all have a class of “title” and the values have a class of “value”. That is about as much as I could get with it.
.MMM-SystemStats .title {
font-size: 25px;
color: orangered;
}
.MMM-SystemStats .vlue {
color: blue;
}