public static boolean isHex(String hex)
	{
		return HEX_PATTERN.matcher(hex).matches();
	}
@Test
	public void isHex()
	{
		COLOR_HEXSTRING_MAP.values().forEach((hex) ->
		{
			assertTrue(ColorUtil.isHex(hex));
		});

		COLOR_ALPHA_HEXSTRING_MAP.values().forEach((hex) ->
		{
			assertTrue(ColorUtil.isHex(hex));
		});

		INVALID_COLOR_HEXSTRING_LIST.forEach((string) ->
		{
			assertFalse(ColorUtil.isHex(string));
		});
	}