I'd like to see icon_url be supported via the conf file. Best would be if it would just take whatever was in that file, override anything set via the command line options, and then send that to the server. That way you've got support for new any new functionality they add WITHOUT having to update the code (until you want it to be overrideable on the command line.)
in addition to
icon_emojiSlack supportsicon_urlI'd like to see
icon_urlbe supported via the conf file. Best would be if it would just take whatever was in that file, override anything set via the command line options, and then send that to the server. That way you've got support for new any new functionality they add WITHOUT having to update the code (until you want it to be overrideable on the command line.)