public static String getUIKeyLightOrDarkPrefix( boolean dark ) {
		return dark ? "[dark]" : "[light]";
	}
Returns UI key prefix, used in FlatLaf properties files, for light or dark themes.
Return value is either {@code [light]} or {@code [dark]}.

@since 3.6
flatlaf-core/src/main/java/com/formdev/flatlaf/FlatLaf.java