jstnjnsI'm noticing that the images are GIFs, with a matte of white. It would be nice to have these as PNGs (or at least support the option). I understand that they are GIFs for legacy browser support reasons, however, I cannot use this plugin because my sidebar has a black background. Short of changing the images (which I have no desire to do) there is nothing to solve this (to my knowledge). This would just make the plugin all that more versatile. Even if there is no support for PNGs, it would be nice to lose the matte on the GIFs. Pixeled edges seem to be in anyhow ;)
