private static TextAttributes mergeAttributes(TextAttributes primary, TextAttributes secondary) {
   if (primary == null) return secondary;
   if (secondary == null) return primary;
   return new TextAttributes(
       primary.getForegroundColor() == null
           ? secondary.getForegroundColor()
           : primary.getForegroundColor(),
       primary.getBackgroundColor() == null
           ? secondary.getBackgroundColor()
           : primary.getBackgroundColor(),
       primary.getEffectColor() == null ? secondary.getEffectColor() : primary.getEffectColor(),
       primary.getEffectType() == null ? secondary.getEffectType() : primary.getEffectType(),
       primary.getFontType() == Font.PLAIN ? secondary.getFontType() : primary.getFontType());
 }
 private void paintBackground(
     Graphics2D g, TextAttributes attributes, float x, int y, float width) {
   if (attributes == null) return;
   paintBackground(g, attributes.getBackgroundColor(), x, y, width);
 }