Now that I can post messages in your wall, I copy-paste my message from reddit, as you have asked me to do in similar occasions:
Hi Evan, I first started getting involved with the wiki by editing the Sprouted and SPS-PD pages. Back then, my visual editing sklills were horrible and now that they have become less horrible ("better" would be an overstatement) I have decided to replace all the jpg. screenshots of Sprouted that I had originally added with transparent png. files. As you know different file types can't be replaced, so here is a list with image files to delete:
You will have to prepare psychologically that later this month there will probably be a "Part B - Deleting SPS-PD jpegs"