Easy means to add/remove artist images used in slideshow

I love how XBMC can display a slideshow of artist images and bio information while playing songs by that artist. This is one of my favorite features. One issue, though, is that some images are poor quality or need adjusted (artist's head is cut off). We also have young kids and some of the images are not appropriate for younger ones. Is there an easy way to add/remove images used for the slideshows? If not, I would love to see this as a feature in future releases.

Thanks for this wonderful media center.