07b67051c9
[Broadcast Subscribers] gets the Bitmessage Icon for identification. This is hard-coded now, I would favour to put [Broadcast Subscribers] as a fixed item into the Address Book, so you can set an avatar as soon as i implement avatars. Still no options yet: There will be an option to disable Identicons and Avatars separately. Another option will be for the suffix (to mimic adresses like "BM-...@bitmessage.ch" or to add a personal "salt" to prevent identicon attacks where someone creates an address with an identicon that looks alike the one of a known address). Also, identicon size (coupled with row height) should be available, but is of low priority. Next step (after the settings) is to load specific avatars for each address.
PyBitmessage
Bitmessage is a P2P communications protocol used to send encrypted messages to another person or to many subscribers. It is decentralized and trustless, meaning that you need-not inherently trust any entities like root certificate authorities. It uses strong authentication which means that the sender of a message cannot be spoofed, and it aims to hide "non-content" data, like the sender and receiver of messages, from passive eavesdroppers like those running warrantless wiretapping programs.