circle {
    stroke: #0c0c0c;
}

#knn path {
    stroke: black;
    stroke-width: 1px;
    fill: none;
}

ellipse {
    stroke: #0D0D0D;
    stroke-width: 1px;
}

.axis-label {
    fill: black;
}

.brush .selection {
    fill-opacity: 0;
    stroke: #0c0c0c;
    stroke-width: 2px;
}