fix #213
Description
Something bad occured when parsing the color: #FOFOFOF,
System.FormatException: Token is not valid.
at MS.Internal.Parsers.ParseColor(String color, IFormatProvider
formatProvider, ITypeDescriptorContext context)
at System.Windows.Media.ColorConverter.ConvertFromString(String
value)
at BluescreenSimulator.CmdParameterAttribute.TryGetColor(String c,
Color& result)