THIS IS A DOLPHIN JOB:Category icon overlay for Thumbnails

NOTE I WANT THIS TO BE DONE ON MY DOLPHIN SITE. THE SITE BELOW IS JUST AN EXAMPLE

This is my benchmark website: Greatist.com

1. Go to this website (it is not a Dolphin site but i want to do the same function in my dolphin site )

2. Notice the Navigation up top. (Fitness, Health, Happiness, etc)

     - I don't want the Navigation. This is just a reference- Scroll over the navigation to see rollover colors.

3. Now scroll down and look at their blog post Thumnail/Pics

4. There is a little banner overlay icon that represent that blog post category.

I WANT THIS>>>>

1. Got to my Category setting in my admin panel in My DOLPHIN site

2. for every category, i want to be able to upload an icon image

    -to asociated image to my category

These images/icons will be the overlay graphic  to all  content within my modules. We currently have four categories that we use as a standard for all content. I want to be able to have the icons I upload to hang just like on this site.

For ALL Modules thumbnails and post images like articles, news, sounds, videos, etc.