message: Leverage our theme colours
diff: @@ -258,7 +258,7 @@ $composer-shadow-color: rgba(0, 0, 0, 0.28);
  // markdown overrides:
  .mx_EventTile_content .markdown-body pre:hover {
  border-color: #808080 !important; // inverted due to rules below
  - scrollbar-color: auto;
  + scrollbar-color: rgba(0, 0, 0, 0.2) transparent; // copied from light theme due to inversion below
  }
  .mx_EventTile_content .markdown-body {
  pre, code {
  