I see the option to "export states to files," but there's no option to choose a file format other than the pre-filled GIF format. Is there no way to export states to flattened PNGs without going through and saving out each one? If not, I'm going right back to Photoshop and layer comps. If it matters, I'm on a mac.
Set your optimization settings in the Optimize panel before you do the export.
Even though I didn't ask the question, thank you for this tip, Jim. I was having a problem with gradients banding and I knew the problem was related to the images being .gifs - I just couldn't figure out where to change that.