Taskbar icon to turn gold (or other color) when a new email comes in

Like Outlook, it'd be nice if (when a new email came in) not only would the Front have the number counter on the taskbar icon increase, but also if the icon turned a different color. Outlook turns the icon gold when a new email arrives so you can easily see when that happens.

In Front, while you can review the higher number, that can be hard to remember, and it'd be helpful if the color changed, too.