/*
 * PPAGE_overview.png is exported on a transparent background with white
 * connector lines and arrowheads, so on the light palette every edge in the
 * flowchart disappears and only the coloured boxes remain. The site defaults to
 * the dark (slate) scheme where it reads correctly; this keeps it legible for
 * readers who flip the toggle, without needing the diagram source to re-export.
 */
[data-md-color-scheme="default"] img[src$="PPAGE_overview.png"] {
  background: #21252b;
  padding: 0.5rem;
  border-radius: 4px;
}