public override string ToString()
{
CultureInfo culture = new CultureInfo("en-US");
string digits = "r16";
string output = "2;";
for (int i = 0; i < Zones.Length; i++)
{
output += Zones[i].ToString(digits, culture) + ";";
}
output += Highlights.ToString(digits, culture) + ";";
output += Lights.ToString(digits, culture) + ";";
output += Darks.ToString(digits, culture) + ";";
output += Shadows.ToString(digits, culture) + ";";
return(output);
}