Icons in mailbox list

[wrightg]

Using Zimbra Desktop 7.3 (and prior versions as well), I was wondering if anybody could point me to a file which describes the icons that I see in the list of mailboxes after a send/receive. Some look like red flags and others look like little shining lights. There are others as well but I've searched the documentation and can find no mention of description of what these different symbols mean.

Any help anybody??

Thanks.