New Rise feature just released - Flashcards

Hi, Adam and Articulate team!  I am using images with a transparent background with the flashcards, but I am getting a white block around the image.  It just doesn't look as good as if the image were transparent.  Do you know why this is happening?  I am attaching a picture of what I see.  I would prefer to have the image float in the center of the tile with no background.  

Also, I concur with Frederick that having the option to include text above and below images would be useful in some cases.  Also, in the case with music and language learning, audio would also be a nice enhancement, but I am sure it is down the road if you decide to implement this feature.