@Override
      public void settingsChanged(@NotNull MarkdownSettings settings1) {
        setAutoScrollPreview(settings1.isAutoScrollEnabled());
        if (wasVerticalSplitBefore != settings1.isVerticalSplit()) {
          handleLayoutChange(!settings1.isVerticalSplit());
        }
      }
@Override
      public void settingsChanged(@NotNull MarkdownSettings settings1)