private static String colorToString(Color c) {
		if (c.equals(Color.RED)) return "red"; //$NON-NLS-1$
		if (c.equals(Color.GREEN)) return "green"; //$NON-NLS-1$
		if (c.equals(Color.BLUE)) return "blue"; //$NON-NLS-1$
		if (c.equals(Color.CYAN)) return "cyan"; //$NON-NLS-1$
		if (c.equals(Color.WHITE)) return "white"; //$NON-NLS-1$
		if (c.equals(Color.GRAY)) return "gray"; //$NON-NLS-1$
		if (c.equals(Color.YELLOW)) return "yellow"; //$NON-NLS-1$
		return ""; //$NON-NLS-1$
	}