/*
Fix class diagram colors - the ones with bad backgrounds *don't* have it specified in their inline style,
which means that only *they* will have it overridden with CSS
*/
svg.graphviz polygon {
  /* Use the default theme graphviz background color but override its opacity */
  fill: rgb(from var(--md-graphviz-node-bg-color) r g b / 40%);
}