The colors are being used to distinguish clan membership. The first line in the marriage stuff indicates when the marriage started, the second when the marriage ended (in the examples, through death of one of the parties).
Ken's explanation is exactly right. I'm actually working on a second draft of these symbols which will also allow for non-marital unions, and make it easier to represent an individual marrying (or producing children out of wedlock) with more than two other individuals. See Ella in the new example (link below). Her "non marital union" symbol means that she had bastards with the next eligible person to the right, which is Udwain in the example.
I'm also adding in an occupation and/or social class tag, and a "reference" icon that allows you to show someone married in one spot and descended from other people in the same chart (see Eileen in the example).
I'll leave you with an example ( http://justincann.home.comcast.net/CC2S ... ample2.pdf
) of what I'm talking about while I go see Van Morrison at the Patriot Center!
I'm off work tomorrow, and hope to complete this symbol set then.
I'm also thinking about this from the standpoint of kinship within a village, so I'm thinking about how to represent when a certain individual left the village or when someone came to the village. Any ideas?
Anything else you'd like to see something like this do?
Doing the example was great fun so far actually. You can start to see stories that I think really would happen in the close quarters of a Harnic or Medieval European village.
I've also been thinking about how to have TableSmith generate a family tree and have if then generate a CC2 script that places all the symbols accordingly. I'm sure it's doable, but it's starting to boggle my mind!