Postbox 2.5 contains a number of improvements that will help round out the overall experience for Postbox 2 users.
One small change is the use of unread bubbles within the Accounts/Folders Pane, so here is your sneak peek of the day:
In addition to improving the readability for account and folder names, this addition will feel more familiar for users on the Mac.
More on Postbox 2.5:
• New Addressing Widget