@NotNull
  Icon getRendererIconBySeverity(@NotNull HighlightSeverity severity, boolean defaultIcon) {
    HighlightDisplayLevel level = HighlightDisplayLevel.find(severity);
    if (level != null) {
      return defaultIcon ? level.getIcon() : level.getOutlineIcon();
    }

    return HighlightDisplayLevel.createIconByMask(myRendererColors.get(severity.getName()));
  }
@NotNull
  Icon getRendererIconBySeverity(@NotNull HighlightSeverity severity, boolean defaultIcon)