Unread count on labels

I came to Zoho after leaving GMail, and one of the features I miss about GMail is having an unread label count...

That is to say, I have labels set up in my account, and filters that automatically label an email as 'Newsletter' or whatever. I'd like for the UI to show me how many unread 'Newsletter' messages I have. This would allow me to triage my mail more effectively--if I have a couple of dozen or more unread messages, this would help me decide where to start.

Thanks!