periods = INPUT("Moving Average Periods", 14, 1, 1000);
variance = INPUT("Variance", 0.25, 0, 1.0);
descr = INPUT("Description", "Default Value");
http://msdn.microsoft.com/en-us/library/system.drawing.knowncolor.aspx
linecolor = INPUT("Line Color", Color.Blue);
mtype = INPUT("Moving Average Type", MAType.SMA);