I am delving into the creation of custom line types for our company. I have created a few using just the default line types and modifying them, now I am wanting to really get into the nuts and bolts. To start simple I see in pen styles there are Start Marks and End Marks. Looking through the on-line help I see they are assigned an integer from 0 - 46 with 0 = no mark. However there is no listing of what the other options are like 1 - 46. Where can I find where and how these are defined?