[data-wm-plugin="horizontal-timeline"] {
  /* Track dimensions */
  --timeline-track-height: 6px;
  --timeline-track-border-radius: 22px;
  
  /* Track colors */
  --timeline-track-bg: rgba(128, 128, 128, 0.2);
  --timeline-fill-bg: var(--primaryButtonBackgroundColor);
}