unity Color和Hex转化

color to hex

		public static string ColorToHex(Color32 color)
		{
			return color.r.ToString("X2") + color.g.ToString("X2") + color.b.ToString("X2") + color.a.ToString("X2");
		}

hex to color

		public static Color HexToColor(string hex)
		{
			hex = hex.Replace("0x", string.Empty);
			hex = hex.Replace("#", string.Empty);
			byte a = byte.MaxValue;
			byte r = byte.Parse(hex.Substring(0, 2), NumberStyles.HexNumber);
			byte g = byte.Parse(hex.Substring(2, 2), NumberStyles.HexNumber);
			byte b = byte.Parse(hex.Substring(4, 2), NumberStyles.HexNumber);
			if (hex.Length == 8)
			{
				a = byte.Parse(hex.Substring(6, 2), NumberStyles.HexNumber);
			}
			return new Color32(r, g, b, a);
		}

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