private static Integer parseInteger( String value )
		throws NumberFormatException
	{
		try {
			return Integer.parseInt( value );
		} catch( NumberFormatException ex ) {
			throw new NumberFormatException( "invalid integer '" + value + "'" );
		}
	}
Syntax: [normal] [bold|+bold|-bold] [italic|+italic|-italic] [<size>|+<incr>|-<decr>|<percent>%] [family[, family]] [$baseFontKey]
flatlaf-core/src/main/java/com/formdev/flatlaf/UIDefaultsLoader.java