Shows the count of emails currently in the "Inbox" tab of Google Inbox. This is intended for use by people who use Google Inbox like a to-do list, meaning that they might read an email, but leave the "done" checkbox unchecked until they are actually done with the email.
This is similar to other extensions which show the count of "Unread" emails in Google Inbox, however totally different.
It updates the count whenever the DOM for inbox changes.
This uses jquery.js and favicon.js behind the scenes.