svg_style.css

/* Style SVG Graph */

.node ellipse {
    stroke: var(--stroke-color) ;
    stroke-width: 4;
    fill: var(--fill-color);
}

.node.active ellipse {
    stroke: var(--stroke-active);
    transition: fill 0.5s ease-in-out;
    fill: var(--fill-active);
}

.node.active text, .edge.active text {
    fill: var(--stroke-active);
}

.node text, .edge text {
    fill: var(--stroke-color);
    font-weight: bold;
    font-family: inherit;
}

.edge path, .edge polygon {
    stroke: var(--stroke-color);
    stroke-width: 4;
}

.edge.active path, 
.edge.active polygon {
    transition: stroke 0.5s ease-in-out;
    stroke: var(--stroke-active);
}

.edge.active polygon {
    transition: fill 0.5s ease-in-out;
    fill: var(--stroke-active);
}

.edge polygon {
    fill: var(--stroke-color);
}