Added to cart graphic

I will be going live with Zencart 1.5.0. My client would like to super-impose a graphic 'added to cart' on each item as it is selected. I can make the transparent graphic.

Is there an add-on even for 1.3.9 available?

This is not the same as the Add to cart graphic.

TIA.

When you add a product to cart, if you then go back to that product listing, it automatically says above the Cart add button 'Added to Cart'

No reason why this text couldnt be changed to a graphic, if you need to.

I added some items to the demo cart. Upon selection of one of the items and then returning to the list, I do not see the words 'added to cart'. I can accept the words instead of a graphic.

What have I done wrong?

I now see 'quantity in cart' at the level when one adds the item again.

Thank you.