Comment on Unison File Synchronizer

The 2.27 beta seems to work fine in Leopard. I was still using 2.24, which I thought was the latest version available here when I posted. Anyway, now the only problem I have is that the upgraded Mac GUI doesn't seem to be documented. It looks great, but I wish I knew what it all meant. It's mostly self-explanatory, but it actually took me a little while to be sure that left/right still meant local/remote. And I still can't find out what all the little circular icons mean. I think they indicate what kinds of discrepancies exist, with 'x' meaning a file has been deleted, and + meaning it has been created. But the blue dot and the tilde have me baffled.