AppleInsider has posted screen shots of Mail.app 2.0 in the most recent developer release (8A27x) of Tiger. In a blend of the two current themes available (Aqua & Brushed Metal) a platinum interface theme has emerged, with a smooth gradation of color in the menu bars. Other Mail 2.0 features are parental controls for filtering display of content on a per-application basis, iCal integration, and the ability to read email certificates. A single-window interface has also been implemented, doing away with the retractable mailbox drawer, and circular count badges are being used to show unread message counts within mailbox folders.