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());
}
