Board Logos/Images and Notifications

I have included little images for each board that have replaced the default image. The result is that when coming to the forum have lost what would have showed up as a glowing logo there indicating that a new topic or reply was posted..
 
Guess that is just the downside of me replacing the default image/button that changed colors for letting people know about new posts ?
 
Probably a stupid question, but is there anything I can do to that image area for each board that would indicate new activity within the boards ?
 

 

Each board has 2 images, 1 indicating new posts and 1 indicating no new posts. You could make some adjustments to the image with new posts such as making a border around it or something.

Hmmm.... Ok, will give it whirl, and let you know..
Thank you....