I know Hiri already has some basic notifications, but it would be great to have some improvements. My ideas:
1. enable/disable notifications for sub-folders as well (only the top-level folder emails are showing notifications right now)
2. settiing custom notification timeouts (right now it seems that they appear until I click on them - using awesomeWM)
3. making the tray icon do some animation / change color / show a badge after a notification was sent, while the window is not focused again
4. making the notification command customizable (set the command that is invoked - so custom user scripts could handle notifications in various ways - this would also solve idea nr. 2)
ps. Also I don't mind if these features are accessible through a config file instead of the UI.